1. Before issuing you the OBC certificate, the authority of Rajamundry District want to verify that you are required to have the said certificate for your migration to Rajamundry from Vizianagram. There is no irregularity to ask for the migration certificate by the Rajamundry Authority since you have already submitted the OBC certificate issued by the Vizianagram District authority.
2. No. It will be mentioned that you have migrated from Vizianagram to Rajamundry which the rajamundry authority want now.
3. Ask this question to the Rajamundry authority as to from whom they want the said migration certificate . it may be that your municipal councilor at Vizianagram or at Rajamundry can certify that you have migrated from Vizianagram to Rajamundry.
4. You are required to establish with document/certificate that you have migrated from Vizianagram to Rajamundry. The certificate issued by the Municipal Councilors of both the places certifying that you have left Vizianagram and currently residing at Rajamundry should suffice.