@ Ankit :
Please provide additional details wrt donation made to Institution as in check the donation receipt for name or 80G subsection.(only for the purpose of whether it qualifies for restricted 50% or restricted 100% or non restricted 100% or non restricted 50%). Because in every case, donation allowed will be different.
Secondly check whether the payment mode is other than cash mode since the donation is beyond permissible cash limit. And if it is in cash then no donation allowable u/s 80G
Thirdly are there any deductions other than donations u/s 80G??
Now presuming payment mode to be by a cheque and there are no other deductions other than donation u/s 80G
And considering in all 4 cases of non restricted and restricted, 100% and 50%, donation allowed will be
Case 1: Non Restricted 100% - Rs. 51000/-
Case 2: Non Restricted 50% - Rs 25500/-
Case 3: Restricted 100% - Rs 27702/-
Case 4: Restricted 50% - Rs 13851/-
Hope I am able to solve your problem.