His son Gaurav Gogoi, a sitting MP, was accompanying him.
He was speaking to reporters as he stood in line to exercise his franchise for the Koliabor parliamentary constituency, which his son, Gaurav Gogoi of the Congress, represents.
"Modi could have campaigned tomorrow since no polling is scheduled for the day. Soliciting votes in the name of the martyrs of the Assam Agitation is also an indirect violation of the MCC. The martyrs are ours and not of the BJP," the former chief minister asserted.
Modi is scheduled to address two poll rallies in Assam on Thursday to campaign for the second phase of polling to be held on April 18.
Asked if the BJP was worried about its performance in the state, the veteran Congress leader said, "Yes, otherwise why will the prime minister come here repeatedly. Modi claims himself to be the 'chowkidar' of the country.
"Why could he not take the money from the people who looted the country's money. The BJP speak only about 'acche din' when we want development and progress," Gogoi said.
Polling in Assam is scheduled to take place in three phases.
In the first phase on Thursday, polling for five parliamentary constituencies in Assam, is being held amid tight security.
The Tezpur, Kaliabor, Jorhat, Dibrugarh and Lakhimpur Lok Sabha constituencies have an electorate of 76,03,458, including 38,65,334 male, 37,37,970 female and 154 of the third gender, who will decide the fate of 41 candidates.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)