All India Institute of Medical Sciences, Delhi

You have to be among the top 100 in rank. So, score accordingly, as AIIMS is the most prestigious institute in India for medical purposes.

For this you need to appear for and clear all India entrance test conducted by AIIMS. Please follow the link to get information about this.
http://nursing.aiimsexams.org/
Good luck

Admission for this year is closed now, next year in January admission process will start again for 2020 session. Keep visiting the official website for exact details.

Hello Deepshikha,
Your ranking in your category is quite good. I feel that with this ranking you have very good chances of getting admission for B.Sc (Hons) Nursing course in AIIMS.
Best wishes to you.

Visit the official website, and there in the academics section or current notices you would find the link to apply.

Counselling procedure have been started and registration has already been done. You can apply next year for B.Sc nursing.
Qualifying exam: Candidate must pass the 12th or equivalent exam with PCB and English from recognized board.
Minimum marks: Candidates must pass the qualifying exam with 55% for General/OBC (50% for SC/ST candidates).
Age criteria: Must be 17 years as on 31st December 2019. Candidates born or after 2nd January, 2003 are not eligible to apply.
Appearing Candidates: Final year candidates are also eligible to apply.
Only female candidate are eligible to apply under this course.

Yes, the candidate must pass class 12th or equivalent exam with PCB and English from recognized board with 55% for General/OBC (50% for SC/ST candidates).
Good Luck.