Ghatak will provide learning experience for the materials, airframe design and engine. The avionics experience will come from MWF. Ghatak's design is being handled by ADA whereas the rest of the development will fall under ADE. MWF will create all the technologies necessary for AMCA Mk1.
Also, AMCA Mk1 is already planned for 2025-30. They originally expected LSPs to become available by 2027-28, which means by 2029, they could begin producing AMCA Mk1 for IOC, with delivery in 2032. Add 1 year to every year there's a delay in starting the project.
To answer your earlier question about N-AMCA, they discovered the aircraft design will not be suitable for carrier ops. So TEDBF is unlikely to be an AMCA derivative. ADA plans to make a dedicated carrier aircraft separate from the AMCA for the navy in the 2030s.
Yep, right now, our only realistic 5th gen option for this decade is the Su-57. It's available in its Mk1 form, the Mk2 form should become available by the time we negotiate a contract and get the jet delivered. I'd definitely like to see a signature for 40 Su-57s before 2025, with a second order of the same before 2030, and end it there.