Engineering

It is better to wait for the rank. Until the rank come it is very hard to guess. Once the rank come it will be very easy to guess whether you will get it or not.

It is difficult to get a seat in VRSEC according to your rank. So please choose other colleges that are eligible with your rank.

Yes, by clearing APPGCET you can get M.Tech admission in AU.

HAE Pune gives only Aircraft Maintenance Engineer (AME) license approved by DGCA, Govt. of India to Carryout and certifies the maintenance of Aircraft, Aircraft Engine, and Its Component. The license is issued in accordance with the Rule 61 of Aircraft Rule 1937 under Aircraft Act, 1934 (XXII of 1934) passed by Indian Parliament to ensure the airworthiness of the aircraft before its flying in accordance with the national & international aviation standards.

No, in order to pursue BCA or B.Sc in CS you should complete your 12th with PCM as subjects, then only you will be eligible to apply for those courses.

It's better to go for CSE in NIT Hamirpur as CSE is the best branch and Hamirpur is really good and offering high package jobs.

Yes, you get good education and even placements are good with decent packages, if you don't get in any of the top institutes it's good to go for Thapar Institute.

There are less chances for you to get admission in any of the IITs as your score is quite good, but not sufficient to get into IITs. Use the rank predictor to know your rank and if you are under top 8000, you can get a good IIT with good branch.
https://www.shiksha.com/b-tech/resources/jee-advanced-rank-predictor.