For Economically Weaker Section - EWS Category 

compulsory: -   1) disadvantaged group- a certificate issued by a revenue officer.

                            2) if we have only income certificate issued by a revenue officer. then admission possible or compulsory  group- a certificate issued by a revenue officer?

For the admission of child belonging to disadvantaged group- a certificate issued by a revenue officer
not below the rank of Tehsildar or any other competent authority, in the name of child or his / her
parents shall be considered.