Bro, you have to study the history of KAVERI ENGINE.
In 1986, the Indian Defence Ministry's Defence Research and Development Organisation (DRDO) was authorized to launch a programme to develop an indigenous powerplant for the Light Combat Aircraft.
GTRE had developed the GTX37-14U after-burning turbojet, which first ran in 1977, and was the first jet engine to be designed entirely in India. A turbofan derivative, the GTX37-14UB, followed. The GTRE returned to turbojet technology with the greatly redesigned, but unsatisfactory, GTX-35.
For the LCA programme, the GTRE would again take up a turbofan design which it designated the GTX-35VS "Kaveri" (named after the Kaveri River). Full-scale development was authorized in April 1989 in what was then expected to be a 93-month programme projected to cost ₹3.82 billion (US$59.6 million).
The Kabini core engine first ran in March 1995. Test runs of the first complete prototype Kaveri began in 1996 and all five ground-test examples were in testing by 1998; the initial flight tests were planned for the end of 1999.
The development was delayed due to lack of funding and Governmental support. Later on, the project throttled up in the reign of Atal Bihari Vajpayee.
The further is what you're talking about.
@airtel