The kind of "negative and abusive" language used by Modi throughout his campaign is unprecedented as no national leader in the country's electoral politics used such language, addressing a press conference, Chavan said.
"Earlier, national leaders countering the Congress governments at the Centre debated on policies and issues even though there was the room for personal criticism. However, Modi's entire speech throughout his campaign has been that of vicious personal criticism without talking about his vision for the country," Chavan said.
Chavan said the RSS had marketed Modi like a "new soap brand" in the market who in turn had hijacked the party.
"RSS has always believed in dictatorial and authoritarian rule which they want to bring about through Modi. We are confident that the voters will see through this design and defeat such forces," he said.
"I had challenged Modi to debate with me on the development of both Maharashtra and Gujarat but he did not respond as the Gujarat development has been exposed," Chavan added.