Urgent plzz.. alternate of birth certificate India spouse sponsorship

[Messi lional]

Hi guys ,

My future wife doesn't have birth certificate and that's the Outland application which is from India , so for India is it mandatory to submit birth certificate or is there any alternate document which she can submit .....

Need expert advise and plzzz help me :-[ :-[ :-[

 

[Messi lional]

Plzzz experts reply ...... waiting for your reply ..