Colleges in Gujarat

Dear Abdul,
Regarding all the details about diploma in aviation hospitality kindly check out the link mentioned below:
https://www.shiksha.com/hospitality-travel/hotel-hospitality-management/course/diploma-in-aviation-hospitality-and-travel-management-air-hostess-training-institute-panache-academy-prahlad-nagar-ahmedabad-194643

There are many law colleges in Gujarat-
1. INLU, Nirma University
2. M.S. University, Vadodara
3. Ipcowala College of Law, S.P. University, Vallabh Vidhyanagar
4. GLS Law College, Ahmedabad
5. L.J. Law College, Ahmedabad

Start with reading newspaper daily as it will really help you in current affairs. Don't go with mugging up everything like every short cut in maths and all. Just try to understand the concept then only you will be able to handle your entrance questions. Keeping up with a general knowledge will help you to get a good score in entrance exam .
Exam tip: Don't set a target. Attempt only those questions in which you are confident. Attempting 80% exam doesn't mean you will earn good marks as there will be negative marking also and instead of getting good marks you will end up loosing marks.

Yes, you can receive a call from IIMs for interviews if you clear CAT with a good percentile.

Which institute is the best placement after BBA and what is the fee structure

Visit this link to check B.Arch colleges based upon your rank:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor?utm_source=connect&utm_medium=CR_JEECP&utm_campaign=6919840
Then visit this link for various colleges which provides you brochure:
https://www.shiksha.com/architecture-planning/colleges/b-arch-colleges-india.

You can opt for B.Com or BBA. They both have a good scope.