The payment gateway this plugin offers in not compatible with most of Debit/Credit card holder in India. Problem occurs due to different policies of these card in India regulated by RBI (Reserve Bank Of India.
So, solution will be using a gateway that is compatible with all these policies. The most common gateway in India is "CCAvenue".
If you can implement this on this plugin then Indian users as well as card holder can have benefit from this.
I think there will be good votes for this gateway.
Relevent link: http://www.ccavenue.com/quick.jsp