संपूर्ण क्रान्ति है तो जहां है

this old news of 2020. refer /news/post/429880
but nothing got materialized much as of now.

further, altering TT of 82501/02 LJN ⇌ NDLS IRCTC Tejas would bring odd timings and hamper its punctuality.
also,...
more...

it wouldn't be easy for IRCTC for run operations of Tejas from AY / AYC.

there is already 14205/06 AYC ⇌ DLI Express as overnight service in place.

Alternatively, there can be Delhi ⇌ Ayodhya Vande Bharat via LKO which would be the fastest connectivity until Maryada Purushottam Shri Ram International Airport is operational. It is more or likely to get good patronage from Delhi. PFA. As 12004/03 remains packed throughout reason, hence they would have alternate option too.