DA Dearness Allowance; Daily Allowance
DAVP Directorate of Advertising and Visual Publicity
DC Deputy Commissioner; Direct Current in Electricity
DDT Dichloro-Diphenyl Trichloro-ethane (disinfectant)
DFDR Digital Flight Data Recorder (Black Box)
DIG Deputy Inspector General
DIN Director Information Number
D.Lit Doctor of Literature
DM District Magistrate; Deputy Minister
DMIC Delhi-Mumbai Industrial Corridor
DMK Dravida Munnetra Kazhagam (a regional political party of Tamil Nadu)
DNA de-oxyribonucleic acid
DO Demi-official (letter)
DOD Department of Ocean Development
DPAP Drought Prone Area Program
DPC Dabhol Power Company
DPEP District Primary Education Programme
DPI Director of Public Instruction
DPSA Deep Penetration Strike Aircraft
DRAM Dynamic Random Access Memory
DRDO Defence Research and Development Organisation
DST Daylight Saving Time
CCIC Central Cottage Industries Corporation
DRES Department of Renewable Energy Sources
DTH Direct to Home (broadcasting)
DVD Digital Versatile Disk