The Trishul missile project was commissioned in 1983 as a part of
Integrated Guided Missile Development Program. The project was to be completed by 1992 and the missile would be fitted to
Brahmaputra-class frigates as an
anti-sea skimmer.
[3] In 1985, Trishul made its first unguided flight from
Satish Dhawan Space Centre,
Sriharikota. The missile made its first full range guided flight in 1989. In 1992, the missile was successfully tested against a target and reached
Mach 2 speed.
[3] In 1997, the associated radar systems for detecting the incoming sea-skimmer were operational. The launch system was developed by
Bharat Dynamics Limited in 1998.
The missile was reviewed by the DRDO in October 2001. The missile system was found deficient as the tracking radar beam was getting intermittent breaks resulting in the missile missing the target and the heavy BMP-II chassis did not meet the army qualitative requirements for mobility.
[5]The naval version was test fired as a sea skimmer in 2002.
[4] In 2003,
Government of India announced that the missile will be a
technology demonstrator and de-linked it from other projects. The missile was successfully test fired in 2005.
[6] The development cost of the programme was
₹2.826 billion (US$42 million) and the
Defence minister announced the official closure of the programme in 2008.