I need some help regarding UK Visitor visa. I am a private tuition teacher at an institute and we provide classes to under grad students for various subjects and competitive exams , we are a group of teachers with each taking different subjects.

Payments are managed by a coordinator who is paid in the form of cash/paytm/transfer by students and then we are paid via a bank transfer based on number of students in our batch.

My question is - What documents should I submit to proof my employment apart from bank statements ?

Thanks