Thaworn, who holds an unprecedented 18 Asian Tour titles -- including the Indian Open crown in 2005 and 2012, will be among the top contenders at the event which is sanctioned by the Asian Tour and European Tour for the first time.
Thaworn and Jeev Milkha Singh, Jyoti Randhawa and Arjun Atwal, who have won a combined total of six Order of Merit crowns, will form one of the strongest ever fields assembled at the Delhi Golf Club (DGC) from February 19 to 22.
More than 30 Asian Tour winners from over 20 different nationalities including title holder Siddikur Rahman of Bangladesh will also feature at the prestigious event.
At the age of 48, Thaworn continues to perform at the highest level. He won the Queen's and King's Cup on home soil last year to finish seventh on the Order of Merit and will aim to increase his winning tally at the Hero Indian Open.
Chowrasia, who enjoyed a top-10 result in Malaysia last week, hopes to make a swift return to the winner's circle in a little over three months since he won his third Asian Tour title -- Panasonic Open India -- at DGC.
The 36-year-old has a solid track record on home soil as he won the 2008 Indian Masters and went on to secure another victory at the 2011 Avantha Masters. Both events were sanctioned by the Asian Tour and European Tour.
