Accusing Modi of "destroying" the economy with his two decisions, he said had the PM taken the advice of Manmohan Singh he would not have rolled out demonetisation and GST.
Sources say if the party decides to give Manmohan Singh another term, he will have to be adjusted from among the seats falling vacant after some of its Rajya Sabha members win in the general elections
Calling him a 'good man', Kejriwal said it was Singh who shielded India from the global economic recession in 2008 by taking a series of timely measures.
He said that division and hate have become synonymous with the BJP and it thrives on societal fissures.
He said Mani was very knowledgeable in financial matters and public affairs.
UPA indulged in corruption; kept personal interest above nation: PM Modi's latest attack to Congress
Modi also alleged that the previous Manmohan Singh government lacked the political will to test fire the anti-satellite missile despite the country having the capability to build it.
He also slammed Congress president Rahul Gandhi for allegedly asking proof of air strike, saying that Rahul Gandhi 'knows nothing'.
For India to acquire the look, efficiency and skill levels of some of its Southeast Asian neighbours, it needs to become a middle income nation.
The Congress has so far announced candidates for eight Lok Sabha seats and 77 Assembly constituencies.
Naik is already under tremendous pressure after having lost the 2014 election to TRS candidate Azmeera Seetharam Naik and the recent Assembly election to B Shankar Naik.
Speaking at Hindu Business Line's award event, Singh without taking any names said there was no room for authoritarian impositions after the country opted for a democratic path for itself.
BJP president Amit Shah tweeted that what Dikshit had said was already known to the people.
Hope saner counsels shall prevail between leadership of India, Pakistan: Manmohan Singh on border standoff
Singh said this at a function at Teen Murti Bhavan where he was presented with the first 'P V Narasimha Rao National leadership and lifetime achievement award' by former president Pranab Mukherjee.
The existing nuclear global order is coming under strain with some of the old arms control agreements being consigned to history, the former PM said.
He said Dr Singh was perhaps referring to the leaked draft survey conducted by National Sample Survey Office (NSSO) to buttress his claims on high jobless growth rate.