Had you researched a little about LCA Tejas, you would have noted the timeline correctly. View this link:
https://en.m.wikipedia.org/wiki/Timeline_of_HAL_Tejas
1983
DRDO obtained permission to initiate a programme to design and develop a Light Combat Aircraft.
1984
Government of India set up Aeronautical Development Agency (ADA) in 1984 as the nodal agency for managing and developing the LCA.
1985
IAF submitted Air Staff Requirements (ASR) for LCA in October 1985.
1986
Government
allocates ₹575 crore for LCA programme.
1987
Project definition commenced in October 1987 with French Dassault-Breguet Aviation as consultants. Dassault-Breguet were to assist in the design and systems integration of the aircraft, with 30 top-flight engineers reported to have flown to India to act as technical advisers to ADA, in exchange for $100m.
1990
Design of LCA was finalised as a small delta winged relaxed static stability aircraft.
Phase 1 of the development was commenced to create the proof of concept system. Financial problems within India prevented full scale operations from starting.
1993
Full funding started from April 1993, full-scale development work for phase 1 started in June.
1995
First technology demonstrator, TD-1, rolled out on 17 November 1995 and was followed by TD-2 in 1998. However, technical problems in flight control systems and structural deficiencies plagued the prototypes and they remained grounded.
1997
Multi-Mode Radar (MMR) for LCA design work started at HAL’s Hyderabad division and the LRDE.
2001
4 January – LCA’s maiden flight successfully completed by
Technology Demonstrator TD-1, on 2001. Prime minister Atal Bihari Vajpayee renames LCA as Tejas.
2002
6 June – TD-2 makes a successful maiden flight.
2003
Tejas crossed the sonic barrier for the first time.
25 November – PV-1 makes a successful maiden flight.
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