I am not a mathematical expert but few of the mathematicians we had access to have confirmed that this could be a possible proof.

So I wanted to ask how do we get this proof validated the by the larger scientific community?

Dr. Kumar has used the properties of primes and analytic continuation and had a new way of handling slowly converging series and was able to use (at the crucial point) concepts borrowed from Donald Knuth regarding random numbers and random sequences. Knuth had said that for any sequence to be truly random it has to be non-cyclic. The proof required to show that a sequence of +1's and -1's , obtained from the prime factorization of the infinite sequence of integers, had to be shown to be random and to asymptotically behave like the tosses of a coin.

Previous discussions: https://news.ycombinator.com/item?id=12889009