* The awarding institution: A degree from a top Indian university will generally be viewed more favorably than one from a lesser-known institution. The UK's Quality Assurance Agency (QAA) doesn't directly accredit Indian universities, but they will assess the quality of qualifications on a case-by-case basis.
* The specific degree: A Bachelor of Technology (B.Tech) from India might be equivalent to a UK BEng (Bachelor of Engineering) or MEng (Master of Engineering), depending on the length and content of the course. Similarly, an MBBS (Bachelor of Medicine, Bachelor of Surgery) from India is generally recognized as equivalent to a UK medical degree.
* The intended use: The equivalence will also depend on what you plan to use the qualification for. For example, professional bodies might have their own standards for recognizing foreign qualifications. Immigration purposes will have separate processes for assessing qualifications.
* NARIC: The National Recognition Information Centre (NARIC) in the UK provides independent advice and statements of comparability for international qualifications. They are the best source for determining the UK equivalent of a specific Indian degree. You would need to submit your degree certificate and transcript to them for evaluation.
In short, you cannot simply say "an Indian X degree is equivalent to a UK Y degree." You need a detailed assessment by NARIC or a similar body to determine the proper UK equivalence for your specific Indian degree.