What actually happened in NSE co location SCAM?

What happened in NSE colocation scam ? How did they cheat?

In very short, in colocation scam, some brokers who paid bribe to some senior officials of NSE got data(buy-sell price, volume etc used in trading) before other brokers could and thus made a ton of profit.
You can get a lot of articles online if you search,
Explained: What is the NSE co-location scam, how Ravi Narain and Chitra Ramkrishna are involved in it (firstpost.com)

Some people had information a micro second earlier, is that a scam really. Its happening now also right?

Was there any price rigging or manipulation ?

As a retail investor/trader, how has the NSE colo issue affected me? - Industry Insights - Trading Q&A by Zerodha - All your queries on trading and markets answered (tradingqna.com)
In this thread Nitin sir himself has shed some light on it…


Some members were allowed faster access to data as opposed to other members in the collocation facility. This is the crux of the scam.