Income certificate is an important document issued to Indian citizens that state their annual income. It is used to make the citizens of a state eligible for various schemes offered by the Central or State Government. How to apply Citizen can apply for Income Certificate in the respective SDM Office of Ambassa, Gandacherra, Kamalpur & Longtharai Valley. The citizen can apply online in the eDistrict Portal also. For online application Visit: https://edistrict.tripura.gov.in Documents required Common Application Form (Photocopy) Family Ration Card (Photocopy) PRTC of the Applicant (Photocopy) Photo ID Proof of the Applicant (Photocopy) DDO Certificate of the Applicant Other (Original) Whom to contact SDM Office Ambassa, Gandacherra, Kamalpur and Longtharai ValleyDhalai District, Tripura - 799289Email : dmdhalai-tr@nic.in