SIT: Special Investigation Team
SITE: Satellite Instructional Television Experiment
SLR: Statutory Liquidity Ratio
SMS: Short Messaging Service; Subscriber Management System
SOS: Save Our Souls—distress signal
SPG: Special Protection Group
SPIN: Software Process Improvement Networks
SPV: Solar Photo Voltaic
SQUID: Super-conducting Quantum Interference Device
SRE: Space Capsule Recovery Experiment
SRV: Submarine Rescue Vessel
SSN: Social Security Number
STARS: Satellite Tracking and Ranging Station
START: Strategic Arms Reduction Talks
STEP: Science and Technology Entrepreneurship Park
STT: Securities Transaction Tax
SWAN: State-wide Area Network
SWIFT: Society for Worldwide Financial Telecommunications
T
TA: Travelling Allowance; Territorial Army
TAAI: Travel Agents Association of India
TACDE: Tactics and Air Combat Development Establishment
TADA: Terrorist and Disruptive Activities (Prevention) Act
TAPS: Tarapur Atomic Power Station
TB: Tuberculosis
TDC: Transport Development Council
TDS: Tax Deduction at Source
TDSAT: Telecom Dispute Settlement Appellate Tribunal
TERLS: Thumba Equatorial Rocket Launching Station
TIFR: Tata Institute of Fundamental Research
TIN: Tax Information Network
TINXSYS: Tax Information Exchange System
TISCO: Tata Iron and Steel Company
TMC: Terrain Mapping Camera
TMO: Telegraphic Money Order
TNT: Tri-nitro-toluene (high explosive)
TPP: 20-Point Programme
TRAI: Telecom Regulatory Authority of India
TRIMs: Trade Related Investment Measures
TRIPS: Trade Related Intellectual Property Rights
TRP: Television Rating Points; Tax Return Preparer
TRYSEM: Training of Rural Youth for Self Employment
TTE: Travelling Ticket Examiner
TTF: Tourism Task Force