Hi Amit, 

Bachelor of Commerce (B.Com) is a three year under graduate course in which the candidates are taught about the core subjects related to commerce and finance. 

Top Colleges in India offering B.Com are 

• Sri Ram College of Commerce, New Delhi
• Jain University, Banglore
• Loyola College, Chennai
• St. Xavier's College, Mumbai
• Christ University, Banglore
• Hans Raj College, New Delhi
• Symbiosis College of Arts and Commerce, Pune 
• Stella Maris College, Chennai
• Nizam College, Hyderabad

Hope it helps :)