Passport Office Patna — I ma complain about my mother passport

Address: 845413

Dear cs,

I submitted my mother passport application in oct 2018, file number-pa27c[protected]. After four months the status change to "passport application is under review at regional passport office.". I received mail from rpo and sending lot of mail to rpo also. Last mail i received from assistant superintendent, to correct the adhar card address. Where as i submitted my mother bank passbook address and voter id crad for permanent address for address proof. As per my knowledge adhar card is no more mandatory by the order of sc. Any ways its about to more than 4 months and nothing happen. Where i can go for next complain, kindly suggest.