Is there any specific Margin Requirements?

As per SEBI OFS guidelines, all investor bids must be backed by 100% cash upfront margin else the bids would be rejected due to insufficient collateral. Any excess funds due to nil allotment or partial allotment and considering discount (if any) would be refunded back to trading members. 

OFS Margin Requirements
Bids must be backed by 100% upfront cash margin; excess funds are refunded for nil or partial allotments.