Did you mean first ever in the indian history ?? India being on top in the world in terms of population (after China) produced ONLY 1 individual gold medalist in the History ? I think there might be a mistake in the information provided, because even less populated countries like Turkey have produced more individual gold medalists.
I hear you brother, I was shocked too when somebody told me that Pakistan did not win a single medal (yes, not even a Copper medal) in 2004 Olympics. I mean Pakistan's population is more than that of Japan. Yet, Japan won 37 medals...and Pakistan none. I think there might be a mistake in the information provided, because even less populated countries like Mongolia, Syria, Estonia etc won medals in 2004 Olympics.