Mr Gandhi (47) had recently said, in answer to a question, that he believed in destiny when it came to marriage. "This is an old question. I believe in destiny. 'Jab hogi, tab hogi' (It will happen when it does)", he had said.
The Dalit leader who heads the Republican Party of India (Athavale), an ally of the BJP-led NDA, said he could help find a match for the Congress scion.
"He (Gandhi) goes to houses of Dalit people occasionally and eats with them. I think he should marry a Dalit woman. If needed, I will help finding one (match) for him," the minister of state for social justice told reporters in Akola in east Maharashtra.
"I have no intention to insult him, but I'm proposing it (inter-caste marriage) to present a model before the country. I have personally married a Brahmin girl which is in the line with B R Ambedkar's solution to dismantle caste barriers. It (uprooting casteism) cannot be achieved only by eating together," the minister said.
"He is not 'Pappu' anymore. He looks confident and hopefully can be a good leader," the Dalit leader said, referring to the nickname with which Mr Gandhi was often mocked by a section on social media.
Interestingly, another NDA constituent, the Shiv Sena, had recently said that Gandhi had the capability to lead the country.