Are there any scholarships available from UK universities or from the Government of Tamil Nadu or Indian government that I can apply for for a Master's?

Yes, you have funding options at three separate levels for your UK masters: UK government and university scholarships, Tamil Nadu state government support, and Indian central government schemes. Your eligibility for the state and central schemes depends heavily on your social category and family income, so check those criteria closely.

Scholarship Options You Can Apply For

How to Combine These Schemes

You should check your admission offer against the Tamil Nadu scheme's requirement of a university ranked in the QS World Rankings top 1,000, since many UK universities qualify, and note this scheme is specifically for Adi Dravidar, Scheduled Tribe and related converted Christian communities. If you do not fit the Tamil Nadu criteria, look at the National Overseas Scholarship instead, and layer either one with a UK university specific award such as the Clarendon Fund at Oxford or Gates Cambridge at Cambridge.

My Advice

Confirm your social category and family income against the exact thresholds for the Tamil Nadu and National Overseas Scholarships before you plan your budget around them, since these caps are strict. Apply to Chevening or Commonwealth Scholarships in parallel, since holding a state or central scholarship does not usually stop you from also applying for a UK based award.