The Vijay Amritraj conceptualised league is kicking off this evening with a double-header in the Capital and Hyderabad.
"It's a unique format, men and women coming together. For me it's about friendship," the 14-time Grand Slam winner Paes, who will be representing Punjab Marshalls along with Gred Rusedski, Somdev Devvarman and Garbine Muguruza, said today.
Paes added: "After 10 years I will be finally playing doubles with Somdev."
Jankovic, the 29-year-old Serbian singles star, was looking forward to the tournament and said the courts at Delhi Lawn Tennis Association (DLTA), venue for the tournament, are "really nice".
Asked about the prospect of playing against Martina Hingis - the Swiss star is making a comeback to competitive tennis after retirement, Jankovic said, "She has not played singles for so long. I played against her many, many years ago. It feels good but we have to reach the final to face each other."