As you are looking for Kishore Vaigyanik Protsahan Yojana (KVPY) Tutorials /Coaching classes in delhi , so on your demand I am telling some good places for the same :

Bhargav Tutorials, Mehrauli
+91 11 41135297
Old Post Office Building, 1st Floor, Mehrauli, Delhi – 110030

Modulation Institute, Nirman Vihar
91 11 40497817
B-125, mangal bazar road, Nirman Vihar, Delhi – 110092

RVS Classes, Laxmi Nagar
91 11 33237498
U-135 D, 1st.Floor,Vikash Marg, Laxmi Nagar, Delhi – 110092

Career Mentor, Uttam Nagar
91 11 41135144
Exalt Tower, 1st Floor, Uttam Nagar, Delhi – 110059

Amity Institute for Competitive Examinations, Defence Colony
91 11 33625105
E25, Defence Colony, Delhi – 110024

Vision IIT PMT Institute, Janakpuri
91 11 40497302
A1/163, Janakpuri, Delhi – 110058

Nivedita Classes, South Extension Part I
91 11 33237160
E 92, Ground Floor, South Extension Part I, Delhi – 110049

Vibrant Institute, Vikaspuri
91 11 40468415
No. 603, Site-1, Vikaspuri, Delhi – 110018

Kumar - Mathematics Classes, Laxmi Nagar
91 11 41136836
Office No. 202B/385, 2nd Floor, Gali No. 12D Block, Laxmi Nagar, Delhi - 110092