Tata Sky — forgot tata sky password

Address:

+95

I lost my register ph no and forget my tatasky Dth channel password. Now I wanna change my package. When I use my tatasky app, it ask me Tatasky dth Id and password. I only know my tatasky id. This app only show my remaining amt and date. What should I do help me. I want reset my register ph no and email address.