Hey apoorva,
  
  Its good that you have selected IIFA Lancaster college and also BCA degree for building your future.
For admission Lancaster college for BCA degree the eligibility criteria is that you should qualify 10+2 examination with minimum 50% then only you can apply in this college.
For admission in this college you can directly go on the college website and directly apply to the college.

Hope this helps you!!
Have a great day!!