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1 CHAPTER 1 INTRODUCTION 1.1 INTRODUCTION India has a long history of architectural development which contributed to numerous temples spread throughout the length and breadth of the country. Religion was the motivating force behind the construction of these numerous temples in India. The development of temple architecture in India has two distinct styles classified as North Indian/Indo Aryan and South Indian/Dravidian. Most of these temples were constructed out of stone and promoted by the rulers themselves, on colossal scales. There were also other temples smaller in scale built by local communities using locally available materials. North Indian temples were predominantly built out of sandstone and South Indian temples were predominantly built out of granite. As a peculiar case the earliest structural temples belonging to the Pallava reign in South India were built with sandstone. The Pallava temples being over 1500 years old, have been subject to deterioration caused by environmental agencies over a period of time. As these temples are the earliest ones in South India, they laid the basis for a fully developed style (Ananthalwar and Rea Alexander 1980). It is therefore necessary that these temples are protected, conserved and preserved to enable their sustainability for future generations. This doctoral work looks at conservation of sandstone temples built by Pallava rulers from 674 A.D. – 800 A.D. at Kanchipuram located in the northern region of the state of Tamilnadu.
Transcript
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CHAPTER 1

INTRODUCTION

1.1 INTRODUCTION

India has a long history of architectural development which

contributed to numerous temples spread throughout the length and breadth of

the country. Religion was the motivating force behind the construction of

these numerous temples in India. The development of temple architecture in

India has two distinct styles classified as North Indian/Indo Aryan and South

Indian/Dravidian. Most of these temples were constructed out of stone and

promoted by the rulers themselves, on colossal scales. There were also other

temples smaller in scale built by local communities using locally available

materials.

North Indian temples were predominantly built out of sandstone

and South Indian temples were predominantly built out of granite. As a

peculiar case the earliest structural temples belonging to the Pallava reign in

South India were built with sandstone. The Pallava temples being over

1500 years old, have been subject to deterioration caused by environmental

agencies over a period of time. As these temples are the earliest ones in South

India, they laid the basis for a fully developed style (Ananthalwar and Rea

Alexander 1980). It is therefore necessary that these temples are protected,

conserved and preserved to enable their sustainability for future generations.

This doctoral work looks at conservation of sandstone temples built by

Pallava rulers from 674 A.D. – 800 A.D. at Kanchipuram located in the

northern region of the state of Tamilnadu.

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1.2 AREA OF STUDY

1.2.1 The Geographical Area of Study

The area of the study is Kanchipuram town, Kanchipuram district,

Tamilnadu, India. Ancient Kanchipuram, the city of a thousand temples, is

one of the seven most sacred pilgrim centers in India. Kanchipuram was ruled

by the Pallavas and being the capital city, the Pallava rulers added glory to the

town as they embellished the city with gigantic temples and shrines. Though a

number of temples exist in Kanchipuram, the royal temples built by the

Pallava rulers are declared as protected monuments by the Archaeological

Survey of India (ASI) because of their historical and aesthetic value. These

temples are the focus of this study.

The Geographical location of the study is Kanchipuram town,

Kanchipuram district, Tamilnadu, India (Figures 1.1 to 1.4). Kanchipuram

district is situated on the north eastern coast of TamilNadu adjacent to the Bay

of Bengal. Kanchipuram is bounded in the west by Vellore and

Thiruvannamalai districts, in the north by Thiruvallur and Chennai districts, in

the south by Villuppuram district, and in the east by the Bay of Bengal. It lies

between 11° 00' to 12° 00' North latitudes and 77° 28' to 78° 50' East

longitudes. The district has a total geographical area of

4,43,210 hectares and a coastline of 57 Kms and Kanchipuram town is the

district headquarters. For administrative reasons, the district has been divided

into 8 taluks with 1214 revenue villages.

The general climate of Kanchipuram district is hot and semi arid.

The maximum temperature is 37.10°C and the minimum temperature is

20.5°C. The highest annual rainfall recorded is 1423 mm and the lowest

annual rainfall is 985 mm.

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Figure 1.1 Location of the state of Tamilnadu on the map of India

Figure 1.2 Location of Kanchipuram district in Tamilnadu

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Figure 1.3 Kanchipuram district map showing the location of

Kanchipuram town – the geographical area of the study

Figure 1.4 Plan of Kanchipuram town – Geographical area of study

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1.2.2 History of Kanchipuram

In ancient geography, Thondaimandalam was an ancient division

comprising roughly the present districts of Kanchipuram, Chennai, Tiruvallur,

Vellore and Tiruvannamalai. The capital of Thondaimandalam was the

present Kanchipuram town ruled by the Pallava Dynasty.

The city was called as Kachchipedu, Kachichi and Kanchi in the

past (Jouveau Dubreil 1918). Yuan Chwang, the great Chinese traveler, who

visited the city in the 7th century stated that this city was 6 miles in

circumference and that its people were famous for bravery and piety as well

as for their love of justice and veneration for learning. He further recorded

that Buddha had visited the place (Rea Alexander 1909). As regards learning,

Kanchi stood second in glory only to Banaras. The history of Kanchi can be

traced back to several centuries before the advent of the Christian era. The

place finds its name in Patanjali's Mahabhashya written in the second century

B.C. Manimekalai, the famous Tamil classic, and Perumpanattu Padai, a great

Tamil poetical work, vividly describes the city placing its origins at the

beginning of the Christian era.

From the 3rd

to the 9th

century A.D., Kanchi was the capital of the

Pallavas who ruled over the territory extending from the river Krishna in the

north to the river Kaveri in the south. The Pallavas fortified the city with

ramparts, moats, etc., with wide and well-laid out roads and fine temples.

They were a great maritime power with contacts with far-off China, Siam,

Fiji, etc., through their chief Port Mamallapuram, the modern Mahabalipuram.

Ancient Kanchipuram, the city of a thousand temples, is one of the

seven most sacred pilgrim centers for the Hindus, the others being Ayodya,

Mathura, Maya, Kasi, Kanchi, Avanthi, Duvaragai. Today, apart from its

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temples, this small town is also known for its thriving handloom industry.

Kanchipuram town is also known as the Silk City since the main profession of

the people living in and around it, is weaving silk sarees. The silk weavers of

Kanchi settled there more than 400 years ago and have given it an enviable

reputation as the producer of the best silk sarees in the country.

1.2.3 Architectural Developments in Kanchipuram

Kanchipuram has been regarded as one of the holiest and most

important cities of Ancient India. The Pallavas embellished the city with

gigantic temples and shrines and also excavated many tanks and lakes. Of the

palaces, forts and residences built by them, there is little or no evidence

(Jouveau Dubreil 1918). Temples and other religious structures have

sustained over time due to religious worship and festivals. The religious

enthusiasm and devotion during the Pallava rule was manifested in the

magnitude of the temples and the highly sculpted temple forms.

1.2.4 History of Pallava Architecture

Four distinct periods of Pallava history are recognized (Table 1.1),

the earliest covering roughly two centuries, the 3rd

and 4th

century A.D, the

second period covering the 5th and 6

th century A.D, the third and fourth

periods together, extending from the latter part of the 6th century A.D down to

almost the end of the 9th century A.D. In the later half of the 9

th century the

kingdom fell to the Cholas who ruled Kanchipuram till the end of 10th century

A.D (Rea Alexander 1909).

The most important groups of Pallava monuments are situated in

and around Kanchipuram town. The architectural style under the Pallavas

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corresponding to the 3rd

and 4th

period is classified as per the Table 1.1 and is

also linked with the kings who ruled the period.

Table 1.1 Architectural style of the Pallavas (Rea Alexander 1909)

Sl.

No. Period Style Duration

1 Early period Mahendra style 610-640 A.D

2 Intermediate period Mamalla style 640-674 A.D

3 Late period –First phase Rajasimha style 674-800 A.D

4 Late period – Second phase Nandivarma style 800-900 A.D

Under the Mahendra style, the rock-cut cave temples were

excavated from natural rock. These temples were very crude in form and

rudimentary in nature because, first, the style was in the initial stages of

evolution, and second, the craftsmen worked with granite which is difficult to

work on. The Mamalla style was little refined and took the form of free

standing, monolithic rock-cut temples known as ‘rathas’. These monuments

are situated in one of the World Heritage Sites of Tamilnadu, Mamallapuram,

and the Shore temple is a World Heritage Monument.

The late period – had two phases. In the first phase, structural

temples were built of sandstone. These monuments are situated in

Kanchipuram town and are the first structural temples of South India, with

great refinement in architectural style and intricate features. In the second

phase of the late period, the temples were made of composite materials. The

lower portions of the temples are built of sandstone and the upper portion i.e.

the tower of the temple is built of brick with lime plaster.

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After the collapse of the Pallava kingdom around 900 A.D., temples

were built by their successors – the Chola kings in Kanchipuram. The

construction of these temples was slowly shifted from sandstone to granite

during the early Chola period, the reason probably being the durability of

granite. Monuments built after the early Chola period are made of granite or

brick with lime plaster (Srinivasan 1975). One these temples – Jwaraheswara

Temple, constructed out of granite in the early Chola period is under the

protection of the ASI.

1.2.5 Temples in Kanchipuram

The study undertaken by The Directorate of Census Operations,

Tamilnadu in 2002, reveals that Kanchipuram District has 2359 temples on

the whole, Kanchipuram Taluk has 347 temples and Kanchipuram town has

56 temples (Government of Tamilnadu, The Directorate of Census Operations

2003).

As part of the present study an inventory of sandstone temples in

Kanchipuram town was made and it is found that 25 temples are made of

sandstone. 11 temples are unprotected (the regular maintenance of the temples

and routine religious practice are taken care of by the Hindu Charitable and

Endowment Trust), six temples are taken care of by the State Departments of

Archaeology (SDA), Tamilnadu, and six temples are taken care of by the ASI

and declared as protected monuments. During the inventory of sandstone

temples in Kanchipuram town it was found that except the ASI monuments all

other temples had additions to the original temple in different styles and with

different materials.

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1.2.6 History of Sandstone Monuments

Out of the six temples under the ASI, those of Kailasanatha,

Iravathaneswara, and Piravathaneswara were built by Narasimha Varman I

between 700 A.D - 728 A.D. Mukteswara, Matangeswara, and Vaikuntha

Perumal temples were built by Nandivarman II from 732 A.D - 796 A.D. Of

these temples the Kailasanatha and Vaikuntha Perumal temples are on a larger

scale.

All monuments are of the typical Pallava style-externally, a lofty

tower built over the central shrine rising, in tiers, diminishing in size as they

approach the summit; in front of this shrine is a large pillared hall or mandapa

approached through a small porch (Longhurst 1928). The Piravathaneswara

temple is an exception in that it has a pyramidal tower over a central shrine

without a porch or a pillared hall. A characteristic feature of these Pallava

temples is the typical pillar found in them. The base of the pillar is carved in

the shape of a conventional lion sitting in an erect position and carrying the

shaft of the column on top of its head (Longhurst 1928).

A granite slab was introduced at the plinth level of the monuments

to act as a structural tie as well as to prevent water seepage into the super

structure. This structural detail is typical for all sandstone monuments - royal

temples and community temples - built during the Pallava reign.

1.2.7 Conservation of Sandstone Monuments in Kanchipuram

The monuments in Kanchipuram town are taken care of by three

agencies, the ASI, the SDA, Tamilnadu, and the private trustees of

Kanchipuram town. From the point of view of conservation there is no data or

primary information available in order to conserve these monuments. As a

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beginning in this direction this study concentrates on the Pallava sandstone

monuments protected under ASI.

The sandstone monuments taken care of by the ASI in

Kanchipuram town are shown in Figures 1.5 to 1.10.

Figure 1.5 The Kailasanatha temple

Figure 1.6 The Vaikuntha Perumal temple

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Figure 1.7 The Mukteswara temple

Figure 1.8 The Matengeswara temple

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Figure 1.9 The Iravataneswara temple

Figure 1.10 The Piravataneswara temple

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1.3 MOTIVATION OF THE STUDY

1.3.1 Previous works on the area of study

The previous works on the conservation of sandstone monuments in

Kanchipuram are limited to the following:

History of the city of Kanchipuram, the history of the kings who

have built the monuments, their family details and the grants given to others

by the kings are valuable sources of the history of the monuments (Rea

Alexander 1909; Jouveau Dubreil 1918; Longhurst 1928; Meenakshi 1936;

Srinivasan 1964, 1971; Mahalingam 1967,1988; Srinivasan 1979).

Studies on the architectural styles of the monuments, photo-

documentation of the monuments, the general maintenance of the monuments,

annual cleaning, and minor repair works, landscaping the surroundings and

security of these monuments are taken care of by the ASI (Government of

India, ASI 1980).

Scaled drawings of these monuments and their status with respect

to their condition and deterioration over the years are not available.

1.3.2 Focus of the Study

During the field study it is found that the deterioration of the

monuments is primarily due to the extensive weathering of sandstone

surfaces. To cite a case, weathering has so altered the monuments that in

several places the surfaces of the octagonal columns are rounded off to a

circular form. A higher level of deterioration of sandstone is seen on the

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external surfaces of the structure than on the internal surfaces as these

surfaces are exposed to external environmental forces.

Figures 1.11 to 1.16 illustrate the examples of weathering damage

seen on the monuments.

Figure 1.11 Splitting and peeling of stone layers found in the

Matengeswara temple and the Vaikuntha Perumal temple

Figure 1.12 Rounding of edges found in the Kailasanatha temple

(a) The Matengeswara temple (b) The Vaikuntha Perumal temple

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Figure 1.13 Surface erosion found in the Piravataneswara temple

Figure 1.14 Pitting found in the Vaikuntha Perumal temple and the

Iravataneswara temple

Figure 1.15 Growth of micro-organisms found over the lime wash

applied on sandstone surface - The Iravataneswara temple

(a) The Vaikuntha Perumal temple (b) The Iravataneswara temple

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Figure 1.16 Cracks found in the columns - the Kailasanatha temple

The primary data on the present status of the deterioration is not

available to carry out conservation work on these monuments. Besides, the

nature and characteristics of sandstone used have not been investigated, thus

hindering conservation work.

Authentic records on the source of sandstone procured for the

construction of the monuments are not available. At present ASI uses

sandstone blocks procured from ruined and collapsed temples and temple

tanks in Kanchipuram town for the restoration works. Once this resource is

depleted there will be a need to procure fresh sandstone. There are no

operational quarries existing in Tamilnadu for sandstone, since Tamilnadu is

basically a granitic region and granite is a prime building material for

construction. Hence the study attempts to fill the gaps on these aspects.

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1.4 RESEARCH QUESTIONS

1. What are the characteristics of the sandstone used in the

monuments?

2. What is the extent of decay of sandstone used in the

monuments? Can the extent of decay of sandstone be

measured qualitatively / quantitatively and what

methodology should be adopted?

3. Where are the sources to obtain fresh sandstone for future

conservation works in the absence of operational sandstone

quarries in Tamilnadu?

4. Will the sandstone obtained from these sources be

compatible with the sandstone used in the monuments?

1.5 SCOPE OF THE STUDY

1. A study of the properties of sandstone used in the

monuments and the study is limited to geological aspects

and does not go into the engineering properties of sandstone

2. Investigation of the present status of deterioration of the

sandstone monuments

3. Exploration of possibilities to locate fresh sandstone

compatible to the sandstone used in the monuments.

1.6 OBJECTIVES OF THE STUDY

1. To characterize the sandstone used in the monuments

2. To investigate the present status of deterioration of

sandstone used in the monuments by decay mapping

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3. To identify the geographical locations in Tamilnadu which

will provide geologically compatible fresh sandstone as

replacement material for future conservation works

1.7 ORGANIZATION OF THE THESIS

Chapter 1 deals with the introduction of the study. This chapter

gives the background information for the study of architectural developments,

and organizations involved in the conservation of monuments in India.

Besides it outlines the area of study in terms of geographical location, the

history, the monuments located, the sandstone monuments and the current

status of the conservation of sandstone monuments. The research questions,

objectives and scope of the study, are also outlined.

Chapter 2 deals with the review of literature. It discusses

conservation of monuments at the national and international levels. It also

highlights the different studies and methodologies adopted for stone

conservation at the national and international levels. It discusses the use of

sandstone in Indian monuments and the common problems faced in the

conservation of stone monuments in India. This will conclude with the need

for further study in the area of conservation of monuments in India.

The methodology adopted for the present study is dealt with in

Chapter 3.

Chapter 4 deals with the characterization of sandstone used in the

monuments. It outlines the petrographic analysis and chemical analysis of

sandstone used in the monuments.

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Investigation of sandstone monuments protected under the

Archeological Survey of India in Kanchipuram town is outlined in Chapter 5.

Three monuments had been taken for detailed study. The history, the material

used for construction, the construction methodology adopted, and previous

records of conservation measures taken in the monuments are studied.

Further, it records the present status of deterioration that has taken place in the

monuments by decay mapping. It concludes with the conservation measures

to be taken for the sandstone monuments.

Chapter 6 deals with an analysis of the identification of fresh

sandstone in Tamilnadu for future conservation and restoration works. Further

it deals with the characterization of fresh sandstone collected from the field.

Petrographic analysis and chemical analysis had been done of the fresh

sandstone collected from the field. The compatibility of fresh sandstone and

weathered sandstone collected from the monuments is analyzed at the end of

this chapter.

Chapter 7 deals with the conclusions of the study. Further it

discusses the application of data obtained from the study in future

conservation work of the monuments and discusses the areas for further

research.


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