Popularly known as "TS Baba", Dev has been spending most of his time outside his luxurious palace, campaigning for the November 19 election.
A Congress nominee and sitting MLA, Dev is among the top three richest candidates in poll fray, with the highest declared assets of Rs 561.50 crore.
Scion of royal family in Sarguja district, 61-year-old Dev is making home visits in his constituency to meet voters belonging to middle, lower middle and poor backgrounds.
Dev said his priorities are to ensure development of Ambikapur and adjoining areas and claims to be working for the welfare of the people.
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"From roads to sewage system, whatever you see today is result of my efforts. Even I am unable to utilise Local Area Development Fund because of administrative glitches," Dev said.
He promises to set up medical and engineering colleges, generate employment opportunities for youths and provide better road connectivity among other things and is busy campaigning in Naxal-affected Ambikapur areas, on the borders of Uttar Pradesh, Bihar and Jharkhand states.
He had won 2008 Assembly Elections with a margin of 948 votes against his rival and BJP candidate Anurag Singh Dev, who will contest again from Ambikapur constituency.
"I will win elections with huge margin. I am highlighting 50 years of Congress rule in the country with ten years of BJP rule in the state. People can see the difference. Raman Singh has done a lot of development work. People will choose him again. I am confident of winning," the BJP candidate said.