1.Guru Gobind Singh Indraprastha University, Dwarka , New Delhi is the best University for the IAS preparation. Let me explain why-

1- Location - this University located in prime location of New Delhi . You can reach all the coachings with in an hour.

2- Library- the best thing is library we have here . The library is open 9.00AM to 9.00PM all 7 days of week.

3- Hostel- In this University hostel facility is the one of the best part of the University. All the students have single room . Food and other quality is the best here.

4. Attendance Issues - the best part of our university is there is no big issue of attendance. If you have about 50% attendance then you will not going to phase any trouble.

5. Semester Exams - In a semester there is two exams one is minor of 25 marks and one is major of 75 marks. And trust me you can easily pass these exams with good marks just solving last few years exam papers.

2.JAMIA Milia Islamia

This college provides IAS coaching .However for that you have to come to Delhi,you have to give entrance test for that if got selected then it’s good .However the result of the coaching is not that good majority students join coaching institutes in order to prepare .

Are you asking for IAS Preparation Coaching, There are many coaching or Institute but Some of the best IAS coachings in Delhi are:

Chanakya IAS Academy

Vajiram and Ravi Institute for IAS Exam

Sriram's IAS

Ensemble IAS Academy

Good Luck!