Ranilakshmi D 16 May 2018
R.Ramachandran (Advocate) 16 May 2018
If your sister is married, then she has to get the non-creamy layer OBC Certficate based on the income of her husband (not your father's income).
Your sister should have the income certificate of your sister's husband, her caste (OBC) certificate, AADHAR card, Ration Card etc.
Ranilakshmi D 16 May 2018