Buyer Securities Settlement
A buyer will have his CDS account credited by T+2. However, if a buyer fails to pay by 12.30pm on T+2, the company shall then "sell-out’ the shares to cover his outlay on T+3.
Seller Securities Settlement
A seller's CDS account is debited by T+2. This also means that a seller’s account does not have to be in credit, at the point when he trades. However, he must have sufficient shares credit in his CDS account on T+1. To settle such trade, he can transfer the required shares into his account on T+1 day itself before 12.30pm.
If a seller fails to have his shares in his CDS account to settle a trade on T+1, his trade will fail and buying-in will be instituted against him on T+2.