Hi Kanika,
Some of the best institutes for Management Education in Delhi NCR are :
1) Faculty of Management Studies Delhi
2) Indian Institute of Foreign Trade Delhi
3) Management Development Institute Gurgaon
4) IMT GHAZIABAD
5) IMI DELHI
6) Department of Management Studies IIT DELHI
7) DBE
8) DSM
Other good B Schools include FORE, LBSIM, BIMTECH, JIMS etc

For other schools you can refer to the link: Delhi

All the best!