Six years before the day on which the WTC was demolished, (Sep 11, 1995), which Indian was sitting on the top floor of the WTC building, trying to accomplish something that no Indian had done before? Who?

The question references September 11, 1995, when Vishwanathan Anand achieved something significant in chess. Anand became India's first Grandmaster and was a pioneering figure in chess history. The WTC reference appears to be dramatic framing for the date rather than a literal location claim. The other players listed are Indian chess masters but were not associated with this specific milestone.