Renting the lease again to the tenant 4631417413

One of my acquaintances needed cash so I rented a floor owned by him for a period of six months and rented it to him again. Two different contracts are made for rent and payment. In the first contract, I rented the floor from him for two lakh rupees and paid two lakh rupees in cash. In the second contract, I re-rented the floor to him for two lakh and thirty thousand rupees. He pays a total of thirty thousand rupees in six months in installments of five thousand rupees per month and pays the remaining two lakh rupees of rent after six months. I want to know whether our transaction has been valid and whether the additional thirty thousand rupees received through this transaction has been valid for me? Will benefit by informing. 5363346176