PG Diplomas for working individuals in India

Hi,

I have 2 years of software dev experience (B.Tech IT) and I'm looking for part-time PG Diplomas in AI/ML:

Offered directly by IITs/NITs/IIITs/BITS

With a proper institute-issued diploma

No third-party platforms like upGrad, Great Learning, Simplilearn

Preferably 1 year or less, for working professionals

Are there any such credible programs? Would really appreciate any leads. Thanks!