Hi,
You will need to claim Foreign Tax Credit Relief of up to 100% of the tax deducted in India. If you are completing a paper tax return, you will need SA106 (foreign) and SA108 (capital gains) and submit with SA100.
Self Assessment: Foreign (SA106)
Self Assessment: Capital gains summary (SA108)
You report the capital gains on SA108 and again in SA106, so that you can claim Foreign Tax Credit Relief. If you are completing an online tax return, you will need to go to '3 - tailor your return' and select the options for capital gains and foreign income/gains. In '4 - Fill in your return', you will enter your capital gains details.
Thank you.