Engineering

You cannot get it. firstly you have to clear it. because either you should have PCB or PCM. Through PCM you can get admission in the engineering college. If you have Maths but failed in physics then also you are not eligible. So clear out the physics.
All the best

No, you can't select Biology as an optional subject instead chemistry, as Physics, Chemistry and Maths are the important subject of engineering. Engineering is nothing without PCM.

They should lock their college and after they have locked, they have to visit the alloted college along with documents.

Yes, you can apply for PMB Group in UPSEE counseling.

Yes, you can get government college with this rank.

Yes, you can get seat in Andhra University with this rank.

In the first year of engineering, the subjects are not related to any particular branch or department, but are more like general engineering. These subjects are to be known by every engineer, irrespective of their branch. They include Basic Electronics, Basic Electrical, Programming with C/C+, Basic

No, Maths is not mandatory for B.Com (Hons) in DCAC.

The fee would be around 80K per annum+hostel.

Acharya college.