Farming on ancestral property given to temple

Hi, My name is Saravana, 26 years old Engineering graduate. I seek someone's help in understanding some basic things about property law. My great great grand father had built a temple at a village and my great grand father had given some property to it (we have the documents). After that most of our families vacated the place and we didn't use/maintain it for almost 2 generations (hardly visit the temple once in 2 years). My father is now maintaining the temple for the last few years. There is a 12 acre of land around the temple which was given to the temple by my great grand father. Now, we're planning to do some farming on it. Can we make use of the land for farming? If yes, what are the documents that are required to take this further? Kindly help me in understanding the basics of property law to solve my problem. Thanks.