Co-location server case: NSE bans OPG Securities for 6 months

what are difficulties faced by clients?
any one please explain

OPG securities is a prop trading house, which means they only trade for themselves and don’t do any client trading. This wouldn’t affect any clients.

why was the ban?

UNFAIR Trading information access. They know the bid and ask prices before the rest of India knew about it.

This is called Trading in GOD mode. Knowing the prices before anyone else in India.

Also, While the rest of India was struggling to get their orders placed and filled on the main server for 2 years, these hackers had the whole backup server to themselves. They were celebrating holi, ramsan and christmas every day of the year. This is what people would call, Having a good time while betraying the whole country.