JEE

Yes, MBM is a good engineering college located in Rajasthan. Placements are also good there. You should go for that.

Yes, the counsellings for JEE Mains and Advanced will be held separately.
First, JEE Mains counselling will be held.

Yes, you can easily get that stream without any problem and you can also get admission in IITs.

No, there is no sports person quota in the IITs so you start preparing for JEE Advanced.

It will be quite difficult for you to pay the donation of this institute as the donation of this institute is very high and your family income is also quite low so I'll suggest you drop the idea of taking admission in this college.

See, if you have state domicile certificate then you may get the college in the second round of counselling but if you are of outside Maharashtra then it will be difficult for you to get into the college at this rank.

Don't drop a year. Either go for the improvement exam or take admission. It is only advisable to those to drop an year who have to improve there ranks. Moreover, Bangalore has some of the very good colleges. Try out your luck in the counselling process.

Army Institute of Hotel Management conducts its own written test for admission to Bachelor of Hotel Management. Candidates are selected based on performance in Personal Interview and Army Institute of Hotel Management and Catering Technology Written Admission Test. For further details regarding eligibility and admission criteria, please refer to the link provided below:
https://www.shiksha.com/hospitality-travel/hotel-hospitality-management/course/bachelor-of-hotel-management-army-institute-of-hotel-management-and-catering-technology-kothanur-Bangalore-73224