The link provided contains this link
https://www.gov.uk/guidance/uk-trade-agreements-in-effect
And here is the proposed trade deal with India from a few years ago and
https://www.mayerbrown.com/en/perspectives-events/publications/2023/04/proposed-uk-india-free-trade-agreement-progress-update#:~:text=In May 20211%2C the,negotiate FTAs with other countries.
and fair enough , the U.K and India are still negotiating that deal