B.A.M.S.

Both are good, but you can opt on your marks and cutoff.

It will be approximately around 2 lakhs per annum.

You can try till last round or in mop-up round or you'll get a better college on your list.

400 marks or above it

In general, the BHU cutoff stays high. Even if you wish to earn a BAMS degree from BHU, you will need to aim for roughly 450 marks in the BAMS courses. Typically, as BHU is the third-ranked university in India, it would be preferable if you attempted to score over 450 points on the exam

It is about 10+2 examination with Physics, Chemistry, & Biology as compulsory subjects, having obtained minimum 50% marks in the above subjects taken together. (as per Council/ Ayush/NEET/CET/CPAT norms).

Candidates who belong to SC/ ST/ OBC are required to obtain marks equivalent to at least 40thpercentile to be considered for AIQ and state counselling process.
Aspirants who belong to UR category are required to score equivalent to at least 50thpercentile.

Aspirants are required to obtain minimum qualifying percentile marks in NEET 2022 entrance examination in order to qualify for further admission process.
Candidates who belong to SC/ ST/ OBC are required to obtain marks equivalent to at least 40th percentile to be considered for AIQ and state counselling process.
Aspirants who belong to UR category are required to score equivalent to at least 50th percentile

DU NEET Counselling Dates For CW Category 2022 (Out)
Candidate must have a valid email ID to apply online form. Fill in the details to apply for seeking admission in UG Courses (BAMS/BHMS/BNYS/BUMS/BSMS) under 85% Delhi Quota for the Academic Session 2022-23.

No, it's not possible this year.
Try harder next year.