Most institutes follow merit based on the marks of board exams or relevant national level competitive exams like Neet.  but usually selection for BSC anaesthesia is based on your marks in 12th. No entrance exam is required and eligibility criteria is can I must have passed there 12th with 50% of marks.

top institutes which offer admission to B.Sc. in Anaesthesia Technology are:

All India Institute of Medical Sciences (AIIMS), Delhi

Aligarh Muslim University (AMU), UP

Mahatma Gandhi Mission Institute of Health Sciences (MGMIHS), Mumbai

Indira Gandhi Medical College (IGMC), Shimla

Armed Forces Medical College (AFMC), Pune

You can get admission through the entrance exams like

NEET (National Eligibility cum Entrance Test)

AIIMS (All India Institutes of Medical Sciences)

AICET (All India Common Entrance Test)

Bangalore University Entrance Exam.

BVP CET (Bharati Vidyapeeth Common Entrance Test)

University of Technology Entrance Exams.

Also admission to b.sc offered on the basis of merit. It will depend upon the college or University you are going to. You are supposed to register yourself in their official website and fill the application form and completing the requirements.

Thabk you