"They (BJP) are terrified at the prospect of the non-NDA parties coming together," Singhvi said.
He claimed that the NDA allies were leaving the BJP like a "sinking ship".
Replying to a query on whether the Shiv Sena, a BJP ally which has said it would go solo in future elections, would be inducted into the anti-NDA camp, Singhvi said, "I did not name any party and I am not referring to this one."
Terming the ruling BJP and Prime Minister Narendra Modi "arrogant", he claimed that the saffron party was not even treating its allies well.
Singhvi hit out at the BJP for celebrating being in power for four years and said the country, however, was not rejoicing.
"Are these four years meant for celebration or was there a betrayal of the people? If the occasion is to celebrate the jumlas (gimmickry) of the Betrayal Janata Party, then everyone is celebrating. We are not great orators like Prime Minister Narendra Modi, but we have plain facts," the Congress leader said.
He said the agricultural growth rate of the country, which was 4.2 per cent between 2004 and 2014 (when the UPA was in power), had fallen to 1.9 per cent in the last four years.
"Modi's promise of doubling farmers' income by 2022 is not just a jumla, but an insult to one's intelligence. To achieve this target in 2022, the current growth rate should be 15 per cent," Singhvi added.
He alleged that the BJP had junked its poll promise of giving the Minimum Support Price as well as 50 per cent above the production cost to farmers after coming to power.
"If one looks at the MSP for crops for 2017-18, farmers are facing losses. Only the BJP can lie with conviction and without shame," Singhvi said.
The Congress leader lashed out at the saffron party's government for allowing the import of 1,500 metric tonnes of sugarcane from Pakistan, despite the country producing excess sugarcane.
"Can there be any bigger betrayal of the sugarcane farmers than this?" he asked.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)