Concept:MANTHAN 2021 is a national hackathon launched by BPR&D in collaboration with an educational regulatory body to solve security challenges.
Explanation:BPR&D, in coordination with the Innovation Cell of the Ministry of Education and AICTE, organized MANTHAN 2021.
The hackathon was jointly launched by Additional Director General of BPR&D, Shri Neeraj Sinha, and AICTE Chairman, Prof. Anil D. Sahasrabudhe, on 26 August 2021.
Its purpose was to address security challenges faced by intelligence agencies.
Therefore, the collaborating organization was AICTE.
Answer:Option B: AICTE.