West Bengal has the third largest number of members of parliament and has been hotly contested between the BJP and the Trinamool Congress, one of the most powerful parties in the coalition trying to unseat Modi.
Priyanka's message comes after most exit polls in the country predicted a comfortable majority for the BJP-led NDA alliance.
"These exit polls have given a high level of comfort for investors and the governmental policies initiated in the first term will only gain momentum", said Amar Singh of Angel Broking.
The BJP-led NDA, which came to power in 2014 winning 336 seats, is again expected to comfortably cross the 300-mark in the 543 member Lok Sabha, according to numerous polls.More news: Iran quadruples uranium-enrichment production as USA tensions heighten
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"Nitish Kumar may be exploring his future political options with or without BJP... if BJP performs well it will spell trouble for Mr. Kumar or, if it doesn't do well that situation also will be troublesome for Nitish Kumar in the state", he added.
A party needs 272 seats to command a majority. "When multiple exit polls convey the same message, the direction of the result broadly would be in consonance with the message", Mr Jaitley said in a blog post yesterday. Panda, who presided over a meeting of party candidates and polling booth agents here, said the workshop was organised to educate them about the procedures and their role on the day of the counting of votes.
While most pollsters and satta bazars earlier discounted a Modi wave in the current election, they have given spectacular numbers to the BJP.
Congress spokesperson Rajeev Gowda said that exit polls were "regularly wrong", and seat share and vote share predictions were very hard to make.
DMK President MK Stalin said his party was not bothered much about the exit poll results. Don't you know that previous exit polls have gone haywire? It expects the main opposition Congress to win 78 seats while the UPA clocks up 132.