There is no entrance exam for B.C.om admission.
Admissions in B.Com are given on the basis of percentage scored in class 12th
Colleges post their minimum cut off marks and on the basis of that the admissions are given.
Since, you are from Lucknow, I am listing best colleges offering B.Com in Lucknow.
List of colleges for B. Com in Lucknow –
Jai Narayan Degree college
DR. Rajendra Prasad Memorial Degree college
Swami Vivekanand Inter College
Lucknow Christian Degree college
Subhash Chandra Bose Degree college
Kalicharan Degree college
GSRM Memorial Degree college
Isabela Thrnburn college.