Accor Plus is a dining program of Accor that offers a host of stay benefits also across Asia Pacific. You can read about the Accor Plus program in detail here.
Accor has tied up with HDFC bank in India and is offering a 10% discount on the purchase of Combo Memberships, i.e. a primary and a supplement card. This offer is valid till December 31st 2019. However, HDFC partnerships often get extended several times in a row so there are good chances it might be available beyond 31st December as well.