Hello. 311 is a very good score and you can get into many colleges. Some of them are listed below:

• Jamnalal Bajaj Institute of Management Studies, Mumbai
• Goa Institute of Management, Goa
• KJ Somaiya Institute of Management Studies and Research, Mumbai
• Amrita School of Business, Coimbatore
• SIMSREE, Mumbai
• Pune University Department of Management Studies

You can check the below link to know about more colleges in which you can get admission.

https://www.google.com/amp/s/bschool.careers360.com/articles/cmat-cutoff/amp

You can also predict your college from the below college predictor.

https://bschool.careers360.com/pathfinder/cmat

Hope this helps. Good luck!