Balramchin is in F&O ban today , so new positions are not allowed as per SEBI/NSE.
But march futures got rollover to april futures. Its same for JPAssociates as well.
Clearly there are some brokers who allow creating new postions in f&o even if it is ban.
Most probably i am sure that traders who rolled over know what they are doing and they are ready to pay the fine ( for one day ).