HAL Land version, ORCA
While ORCA can replace the Rafale in theory, based on TEDBF specs, but not within the same timeframe. Anyway ORCA won't become available before AMCA Mk1, so if the choice is between two "new, untested" fighters, the IAF will obviously go for more AMCA Mk1 rather than ORCA. So ORCA also doesn't compete with Rafale, although it competes with AMCA Mk1's timeframe.
ADA/HAL should have thought of ORCA/TEDBF a decade ago, when MMRCA was anounced. And it should have been flying by now.
The IN is going after TEDBF because ADA does not have the time available to make a next gen fighter jet that will also be STOBAR capable. AMCA isn't suitable for carriers, so it can't be modified. So the choice for the IN is between TEDBF in 10 years or a next gen fighter in 15-20 years. And since neither Rafale nor SH are compatible with our two carriers, the TEDBF it is.
ORCA is definitely an option for the export market.