Janko Tipsarevic's inclusion in the 20th edition of the Chennai Open will see 10 players from world's top 50 list.
The Indo-Romanian pair of Rohan Bopanna and Florin Mergea were ousted from the second round of the Rogers Cup in Toronto.
Mahesh Bhupathi and Janko Tipsarevic lost 3-6, 3-6, 2-6 to Robert Lindstedt and Jurgen Melzer in the first round.
Recovering from a foot injury, Janko Tipsarevic has been advised to take further rest to recover.
In 2013, Janko Tipsarevic had a dream start to the season when he captured the fourth ATP World Tour title of his career, defeating Bautista Agut (Spain) in three sets.
Vijay Amritraj feels high-altitude conditions in Bangalore will be to India's advantage when the Serbians come knocking.
The 29-year-old suffered a rupture on a heel tendon and has been forced to pull out from the tournament in which he participates on a regular basis.
A total of 21 players from the draw released here on Thursday are ATP ranked between eight and 89, in addition to four qualifiers and three wild cards for the India's only ATP World Tour tennis event.
Janko Tipsarevic, the world number 36, has been ruled out by a heel injury
Tipsarevic, who won the decisive third point in Serbia's Davis Cup semifinal win over Canada on Sunday, squandered seven break points in the second set against Bautista Agut, who broke the Serb twice and closed the match with a backhand down the line on his first match point.
Djokovic and Tipsarevic won their respective singles rubbers as Serbia overturned a 2-1 deficit against Canada. They face defending champions Czech Republic in the November final.
Serbia and Canada are level at 1-1 as Janko Tipsarevic failed to follow up Novak Djokovic's opening rout of Vasek Pospisil.
Tipsarevic has had a dreadful run this season as he has slipped out of the top 10 in a downward trend which has accelerated over the last four months.
The victory speaks a lot as Sijsling had made finals at Australian Open and Vasselin had appeared in the Wimbledon semifinals.
Federer, with his world ranking down to fifth for the first time in a decade, has won just one title this season - on the grass of Halle in June.
Falla, a Bogota resident, is seeking his first ATP Tour title. The 29-year-old left-hander will face Canada's Vasek Pospisil on Saturday in the hard-court tournament at Centro de Alto Rendimiento. Pospisil beat Italy's Matteo Viola 3-6, 6-3, 6-2.
They will now fight it out with second seeds Edouard Roger-Vasselin of France and Igor Sijsling of the Netherlands in the final.
In the French capital, he defeated top 10 players Andy Murray and Janko Tipsarevic. But had things turned out differently, he could have been representing Qatar at Wimbledon after he was offered citizenship by the tiny Gulf state in his junior days.