Singh alleged that proper procedures were ignored in the deal, which raises suspicion of some "underhand deal".
On the rising fuel prices, Singh accused the government of having windfall gains between 2014-2018 by raising central excise tax on petroleum products.
Commenting on the upcoming Madhya Pradesh Assembly elections, the former chief minister exuded confidence that his party would come to power, but did not make any comment on stitching alliances
To another question, the Congress leader said he was in favour of conducting future elections with ballot papers instead of EVMs (electronic voting machines).
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