LLB

You have put together too different options to choose from. The question is not which is a better option but which is as per your interest and capabilities.
If you have a analytical mind and you have a strong academic background then do Btech.
If you have great communication skills and enjoy argumentative conversations, good in English then take up Law.
If you have god social skills and a people's person take hotel management.
And if you are more of a leader with organisational skills and have a business acumen then do MBA.
You should take a career test to decide your strengths rather than evaluating which field is good. They all have their pros and cons. It is about what suits you.

Students who aspire to become lawyer after 10+2 can join 5 years integrated BA LLB or BBA LLB course offered by multiple universities. National Law Universities conducting All India Law Entrance Test for 5 years integrated 5 years law degree courses for admission to law universities in India. Lots of private universities also offers five years integrated law degree such as BA-LLB or BBA-LLB or BSc-LLB. Eligibility criteria of appearing in Law entrance examination is having passed the Higher Secondary School Examination (10+2) system or an equivalent examination by securing in the aggregate not less than 50% of the total marks. The Candidates appearing in the 12th Standard Examination in March/ April can also apply.
Various legacy universities and its affiliated colleges offer 3 years LLB degree course. The degree entitles the graduates to practice law. Most of these universities conduct their own entrance examination. Graduates of all discipline are eligible to seek admission in 3 years law degree course.