1) in many states in india only farmer can purchase agricultural land
2) application has to be made to collector for conversion of agricultural land into NA purposes
3)you have to check the revenue records to find whether land is nazul land or not
4) for carrying on any construction on land you need to have plans sanctioned by muncipal corporation
5) if your title is not clear and marketable you wont get house loan for sad property
6 contact a local lawyer . check whether seller has all original documents of property
7) obtain certificate from lawyer that title is clear and marketable . then only purchase the land