Karan Mehra-Nisha Rawal marital crisis: The Yeh Rishta Kya Kehlata Hai star thanks Kashmera Shah; says, 'Forever grateful and indebted'

Karan Mehra-Nisha Rawal marital crisis: The Yeh Rishta Kya Kehlata Hai star thanks Kashmera Shah for her support for being his character witness