The elite athletes include Girish Tiwari of Air Force, Bengaluru; Bahadur Singh Dhoni of Two Naga Kumaon regiment; another Army runner in Mohammad Yunus; and GB Patil.
The elite runners will look to achieve the magical Olympic cut-off mark of two hour 19 minutes, which incidentally is the course record here, even as this seems a herculean task in a marathon event in March.
In the hot and humid conditions of Kolakta, it remains to be seen whether the course record is bettered.
It is also not clear whether the event will be attended by its brand ambassador and Indian tennis great Leander Paes who wished "good luck" to the participants in a video message at the announcement today.
"We're hoping that he may drop in but can't confirm at the moment," an organiser said about Paes participation.
However, the IDBI Federal Life Insurance Kolkata Marathon promises lucrative cash awards with a cool Rs 5.20 lakh for the full marathon winner and Rs 2.60 lakh for the topper in half marathon.
As for the runners, Tiwari with a time of 2:28:01, had clinched the second place in the 5th Vasai-Virar Mayors Marathon November last year.
Mohammad Yunus had finished an overall 20th, third among Indians, with a timing of 1:04:45 seconds at Delhi Half Marathon in November last year.
Bahadur Singh Dhoni was the third fastest Indian with a time of 02:22:41, and overall 13th, in Mumbai Marathon-2015.
