capital gain on agricultural land attact tax as per the slab rate of tax payer.
Further some exemptions are as follows:
As per sec 54B of Income Tax Act,1961
Any Capital gain arises to an individual for transfer of agricultural land which is held for 2 years by assesse or his parents..!!!!!!!!!!
That capital gain can exempted if is invested in another Agricultural Land with in time limit ..!!!!
This section is applicable to only for individual...!!!!!!!!!!!
so in your case, you can not claim exemption,,,,,as per sec 54B...!!!!!!!!!!
But we can claim exemption as per sec 54EC
For more details refer below
https://law.incometaxindia.gov.in/DIT/File_opener.aspx?page=ITAC&schT=&csId=5a1aac72-fbfb-4645-a4be-e48e8c0cb56c&rdb=sec&yr=e5be6bdb-1fc4-42d6-ac7b-34a44fd65485&sec=54B&sch=&title=Taxmann%20-%20Direct%20Tax%20Laws