Need information regarding partnership agreement

Hello Sir, I have invested some money with my friend in trucking buisness. The trucks are on his name i paid him all money through check we didnt made any partnership deed. He didn't let me involved in any buisness. He told me that i get to know the technique of buisness. He is not giving any balance sheet details from last 5 months. Now when i have asked for my money back he is telling me take a truck. I dnt want that as it is in debt with pending installmeants and he is telling me to return my money after 6 months. I have asked for interst he is telling no to me.the buisness is running in loss n we dnt know any details how. Note-we had buyed 2 new trucks on his name in the same year. His father is the co-borrower and his father is a bank officer.