"I am well prepared for the Nationals. This year competition will be tough as it is an important year with two big competitions- CWG and Asian Games, " said Thodi, who will be representing Kerala in the competition.
"I am in good shape. At World Championships in London in August 2017, my timing was 1:21.46. This year I am looking forward to 1:21.00 or less."
Thodi, who is currently training for the National Championship in Bengaluru, is also mindful of the prevailing weather in the National capital.
Apart from Thodi, 80 of Indias best race-walkers in both mens and womens categories will vie for honours in the 20 kilometre race, which will act as a qualification for both Commonwealth and Asian Games.
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The Commonwealth Games is scheduled to be staged from April 4-15 at Gold Coast in Australia, while the Asiad will be held from August 18 to September 2 in the Indonesian capital of Jakarta.
The Athletics Federation of India (AFI) selection committee will announce the Indian team for the Asian 20km Race Walking Championship to be held in Nomi, Japan on March 18 at the back of this event.
Besides Thodi, Manish Rawat has confirmed his participation among men, while Khushbir Kaur, Soumya B, Priyanka Kumari, Ravina, Shanty Kumary and Deepmala Devi will be seen in action among the women participants during the Rs 2 lakhs event.