Kulkarni, a Bangalore-based robotics engineer, is in Amethi campaigning for Vishwas.
Kulkarni's mother is daughter of Mahatma Gandhi's son Ramdas Gandhi.
Speaking over the phone, Kulkarni said he has come to Amethi to support the courageous campaign by Vishwas against the dynastic rule in Amethi.
"I was not invited by anyone...I came on my own to support Vishwas who has been courageous to contest from one of the most difficult constituencies in the country," he said.
Praising Vishwas, he said the AAP leader was a self-made man who had taken up the commendable task of rooting out dynastic politics in Amethi.
Accusing the Gandhi family of misusing the surname of the father of the nation, Kulkarni termed the Congress as "napunsak" (impotent) and said the party had become synonymous to evils such as corruption.
Coming down heavily on dynastic politics in the country including in Haryana, Punjab, Bihar, Uttar Pradesh and Tamil Nadu, Kulkarni said it has severely hurt the soul of India's Constitution and will lead the country towards destruction.
Congress vice president has been thrust upon the people: Kulkarni
"Evils of the dynastic rule has ruined the soul of the Constitution. It must be banned," he said.
Between a choice of BJP's Narendra Modi and Congress' Rahul Gandhi, Kulkarni chose the former saying he was a a self-made man while the Congress vice president has been thrust upon the people.
Raj Mohan Gandhi, grandson of Mahatma Gandhi, had unsuccessfully contested the Lok Sabha election against Rajiv Gandhi in Amethi as a Janta Dal nominee in 1989.
He is contesting this year's general polls as a AAP candidate from East Delhi constituency.