My parents are suggesting to join AIIMS Rishikesh (becoz of closeness) but my teachers are suggesting to take other AIIMS or some state government college? What should I do?

The best way to determine if your parents' suggestion is worth considering or not, is to go through the pros and cons of AIIMS Rishikesh.

Pros

• AIIMS Rishikesh has state-of-the-art infrastructure and the best college environment.
• Academics at AIIMS Rishikesh are world-class with excellent research opportunities.
• The exam pattern followed here is the MCQ pattern which helps you prepare for future PG examinations.
• The best hostel facilities with single rooms for everyone.
• Another major advantage of AIIMS Rishikesh is the lack of state bond 
• The AIIMS tag is definitely worth going for 

Cons

• There is no 50% state quota in AIIMS Rishikesh
• The academic rules and environment are too rigid and students are expected to maintain 50% in internals.

Make sure you weigh the pros and cons well before arriving at a decision!