Income tax on long term capital gain

1) See this for calculating long term capital gain- https://taxadda.com/income-tax/capital-gain/computation-of-long-term-capital-gain-loss/

2) see this for deductions allowed - https://taxadda.com/income-tax/capital-gain/

3) Transfer expenses are allowed as deduction

4) No documents are required at the time of filing Income Tax Return, you need only details regarding transactions

5) Advance tax is to be paid according to tax calculated on total income by normal rates.

6) Advance tax to be paid on all instalments coming after the date of transfer of capital asset.

7) If you dont utilize the amount and want to use it in future for exemptions then you have to deposit such amount in Capital gain deposit scheme account, which is alike savings accounts in a bank.