1)you have not executed partnership deed wherein both you and your brother have 50 per cent share
2) entire business has been carried on in brother name
3) all documents are in his name
4) court goes by documentary evidence on record which is on your brother name
5) it would be difficult for you to claim 50 per cent share in medical distribution business
6) please clarify whether capital contribution was by cash or cheque
7) how has it been reflected in yours and brother income tax returns ?