By 2008 itself Kaveri is not going to Power Tejas MK1A. Anyone who is recycling the same news is blackpilling every few months.
Chronology:
1. Kaveri by 2007/2008s decoupled from Tejas Program.
2. By 2010 the engine went for FTB Testing in Russia. Found issues in certain areas like afterburner, flutter etc.
3. By 2014 funding slowed down. Program is in back burner.
4. During the same time period, tried the Gas turbine for Marine Propulsion which does not achieve the benchmark requirements.
5. By 2016, Snecma done an Audit and suggested M88 Core Mating. Also, Snecma appreciated the GTRE for fixing lot of problems like Flutter etc. Audit done but nothing came out.
6. By 2019 an derivative program for Kaveri started called KDE (Non afterburner version) which will power the UCAF (Ghatak).
7. KDE is simply the same Kaveri engine with all its problem fixed. Godrej becomes the production partner who build 9 prototypes.
8. By 2025, KDE engine is ready for UCAF and BAL is building an Afterburner for KDE.
9. Meanwhile in the last 10 years, DMRL, GTRE worked on Single Crystal Blades, Blisks, Blades with cooling channels, new Turbine materials like DMS4, some work on Ceramic Matrix Composites (5th, 6th Gen Techs). But none of these technologies were applied to Kaveri engine.
10. Where we failed, we did not started the next iteration of Jet engines (Next Jet engine) by utilizing the technology we developed in Point 9.
Tejas, Mig integration is for FTB testing is not feasible for simple reason. Those jets cannot carry relevant sensors to monitor the engine. Also, asymmetric thrust on twin engine fighters are difficult to manage. Compared to four engine il-76 where three engines can compensate in case of failures.