NAA National Airport Authority
NABARD National Bank for Agriculture and Rural Development. (It helps rural development by providing re-finance facility).
NACIL National Aviation Company of India Ltd
NADA National Anti-Doping Agency
NAEP National Adult Education Programme
NAFTA North America Free Trade Agreement
NAFED Narora Atomic Power Plant
NAG National Air Guard
NAM Non-aligned Movement
NAMA Non-Agriculture Market Access
NASA National Aeronautics and Space Administration (of the U.S.A.)
NASDAQ National Association of Securities Dealers Automated Quotation
NASSCOM National Association of Software & Service Companies
NATA Natural Aptitude Test for Architecture
NATO North Atlantic Treaty Organisation
NACO National AIDS Control Organisation
MNIC Multi-purpose National Identity Card
NAV Net Asset Value
NB Nota bene; note well, or take notice
NCA Nuclear Command Authority
NCC National Cadet Corps
NCCR National Council for Civil Right
NCW National Commission for Women
NCEP National Committee on Environmental Planning
NCERT National Council of Education Research and Training
NCR National Capital Region
NDA National Defence Academy; National Democratic Alliance
NDDB National Dairy Development Board
NDF National Defence Fund.
NDNC National Do Not Call (Registry)
NDPS Narcotic Drugs & Psychotropic Substances
NDRF National Disaster Response Force
NDTL National Dope Testing Laboratory
NeGP National e-governance Plan
NEDB North-Eastern Development Bank
NEERI National Environment Engineering Research Institute
NEFA North-East Frontier Agency
NEP National Education Policy
NEPA National Environment Protection Authority
NFDC National Film Development Corporation
NFL National Fertilizer Limited
NFO New Fund Offers
NHDP National Highways Development Project
NHRC National Human Rights Commission
NIC National Integration Council
NICO New Information and Communication Order
NIDC National Industrial Development Corporation
NIMHANS National Institute of Mental Health and Neuro-Sciences
NIO National Institute of Oceanography
NIS National Institute of Sports
NIIT National Institute of Information Technology
NIT National Institute of Technology
NITIE National Institute for Training in Industrial Engineering
NLMA National Literacy Mission Authority
NMD Nuclear Missile Defence
NMEP National Malaria Eradication Programme
NMDC National Mineral Development Corporation
NMDS National Missile Defence System (US)
NOIDA New Okhla Industrial Development Authority
NPC National Productivity Council
NPL National Physical Laboratory
NPP National Population Policy
NPR National Population Register
NPT (Nuclear) Non-Proliferation Treaty
NRBI National Rural Bank of India
NREGA National Rural Employment Guarantee Act
NREP National Rural Employment Programme
NRDC National Research and Development Corporation
NRI National Renewal Fund
NRR National Reproduction Rate
NRSA National Remote Sensing Agency
NSA National Security Act
NSC National Service Corps; National Security Council
NSDL National Securities Depository Limited
NSE National Stock Exchange
NSR National Skills Registry
NSSO National Sample Survey Organisation
NTC National Textile Corporation
NTPC National Thermal Power Corporation
NWDA National Water Development Agency
NWRC National Water Resources Council