Hey,
There are many top B- schools that provide operation management. Since operation management is in demand, so this course has great career.
Colleges are:

1) XLRI Jamshedpur
2) IIM Bangalore
3) IIM Calcutta
4) NITIE Mumbai
5) SPJIMR Mumbai
6) IIT Mumbai
7) IIT Delhi
8) SIOM Nasik
9) Amity business school, Noida
10) Symbiosis international University, Pune

Well,now a days days the demand is high for taking admission in operation management.I will help u out to know about some good college.So,here is the list 

Indian Institute of Management, Bangalore

Indian Institute of Management, Calcutta

NationalInstitute of Industrial Engineering, Mumbai

SP Jain Institute of Management and Research, Mumbai

Shailesh J Mehta School of Management, Mumbai

Symbiosis Institute of Operations Management, Nashik

Indian Institute of Technology, Delhi 

Indian School of Business, Hyderabad 

Indian Institute of Management, Lucknow 

Great Lakes Institute of Management, Chennai 

Indian Institute of Planning and Management, Delhi 

Indian Institute of Social Welfare and Business Management, Kolkata

Indian School of Business Finance, Delhi

International School of Business and Media, Pune 

Jamnalal Bajaj Institute of Management Studies, Mumbai 

Management Institute for Leadership and Excellence, Pune

Narsee Monjee Institute of Management Studies, Mumbai

Hope,this helpful for you.Good Luck