Well prior to partition hindus and muslims mingled happily together and they shared most of their customs. My grandmother still has her sindoor when she got married she had to apply it and she’s Muslim. In Islam all you gota do is nikkah the bidai or rukhsati or whatever is secondary. Customs such as putting mehndi in the palms of the bride with Paan leaves and then all the ladies walk up and touch the mehndi its a weird custom but hindoos do it too. Ok the throwing of rice, wearing of red dress doing upton before mangani. We share a lot with hindoos!