After the 2014 Lok Sabha elections, Karnataka is the only major state where Congress is in power and "in this situation I had expected a lot from this budget," Kumaraswamy said.
Participating in the debate on the state budget in the Assembly, he said, "I expected that Congress through this budget will try and send a message to the people of this country and the state."
"I'm saying all this out of concern for you, I'm worried for you," he said mocking at Congress members.
He said the Chief Minister, with his rich experience on fiscal matters, had a great opportunity to strengthen the party through this budget.
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Speaking on fiscal responsibility of the government, he said if Congress claimed credit for financial discipline, it should also be blamed for financial indiscipline.
As Kumaraswamy rose to speak on the budget, he first lambasted the government for its lack of seriousness in handling sensitive issues and referred to 'mistakes' in the statements of the Chief Minister and Home Minister to the assembly on IAS officer D K Ravi's mysterious death.
Kumaraswamy criticised the Chief Minister for taking more and more loans and putting the burden on the people, which he used to object while in opposition.