lakshya14,
Responding line by line:
Q: Hi, I have not won any inter college competition in my college time, would that be a void in my resume? I have taken part in many but never won.
A: No, it's no big deal. There's no requirement to have won any inter college competitions. Half the time these competitions aren't even well known so they may not even carry weight. It's a nice-to-have, but not a need-to-have. You can note that you were a participant. That counts for something.
Q: Although I have a great extracurricular. I also have a certificate from google online course and other online course. Would that balance some?
A: Those two courses won't matter. You should list them on your resume and application but that is (a) not balancing out a lack of awards, recognition, etc. and (b) not improving your overall profile. See my final comment about meaningful ways you can enhance your candidacy.
Q: How many students do not have any competitions won got admitted?
A: That is a statistic that I am very confident is not gathered or reported. I would not waste your time trying to uncover if it exists.
The larger point here is do not focus on these inter college competitions. There are so many other components of your application that are infinitely more important and will determine whether you are admitted. I would instead dedicate your efforts to work achievements, community leadership and involvement, and the GMAT/GRE for starters.