Hello sir, I am Ankit. I want to know is approval of the All India Council for Technical Education (AICTE) is mandatory for the engineering or any other technical program. Can you give me some details about it?

Yes approval of the All India Council for Technical Education (AICTE) is mandatory for the engineering or any other technical program.
Any University who offers Technical courses must approved from All India Council for Technical Education (AICTE), and then only that course is valid throughout India.

Before Taking admission in any technical degree college must confirm that all the courses must approved from the All India council for Technical Education (AICTE)
AICTE is the only organization that approves an engineering college all over the nation.

If a college is not approved by AICTE their engineering degrees are not valid at least in India.

AICTE recognition mean before an engineering college start taking approval from state govt and state technical university, they should fulfil basic requirements for starting an engineering college
AICTE check those minimum conditions at the beginning and gives its approval.
Once a college gets an approval from AICTE they can associate themselves with the state technological university for start taking students for Engineering studies.

So never take admission in such institute which are not AICTE approved specially in technical institute or the institute of
Architecture,
Town Planning,
Management,
Pharmacy,
Applied Arts and Crafts,
Hotel Management and Catering Technology etc