B.Sc

Candidates who wants to take admission need to complete graduation and Post-graduation with 50% and for those who has done B.Tech, B.Sc and B.Sc Mathematics with 55% can apply. Yes, you can pursue B.Ed form UP Rajarshi Tandon Open University. You can apply directly to the college or you can refer the college website for more detailed information.

No dear. You can't get admission in integrated B.Sc & B.Ed. You can get admission in B.Sc Or B.Ed.
Good luck!

Go to this address -
http://www.indiaeducation.net/careercenter/10-and-12/difference-bsc-maths-stats.aspx.

Banasthali is a good and very reputed institute. You can also check about its details, ranking, placement, faculty, etc. on Shiksha.com.

Western India Institute of Aeronautics Pvt. Ltd. offers the following UG programs as under.
Course offered-
1. Aircraft Maintenance Engineering Mechanical Stream (Aeroplane & Power plants)
2. Aircraft Maintenance Engineering Avionics Stream (ES, IS &RN)
3. B.Sc (Hons.) AM IN MECHANICAL & AVIONICS
The eligibility criteria for above programs is 10+2 with PCM. Further there is no specific % is required for above courses.

Before applying, you need to check the eligibility criteria through this link- https://www.shiksha.com/b-tech/bcece-exam-application-form.

Yes, why not. But sometimes, it also depends which course and college you choose for your study. There are a lot of very reputed colleges in Haryana and they provide good placements. Manav Rachna International Institute of Research and Studies
KR Mangalam University, Gurgaon
Kurukshetra University
MDU Rohtak
Shree Guru Gobind Singh Tricentenary University, Gurgaon
YMCA Faridabad
link for reference- https://www.shiksha.com/science/colleges/colleges-haryana.