Sinha, who was here to participate in a farmers' agitation, told reporters the budget had no schemes for the welfare of farmers.
It was expected that an election-year budget would bring good news for agriculture and the rural sector, but the one presented by Arun Jaitley today was disappointing, he said.
Sinha, who has publicly criticised the Modi government's economic policies and style of functioning on a number of occasions, said: "The government lost an opportunity to provide relief to the poor and the middle class."
Terming the budget "jugglery of numbers", Sinha said the government was simply practising financial engineering.
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The BJP veteran, who on Tuesday launched a political action group Rashtra Manch to take on the Centre, said the finance minister did not make it clear what the country achieved from demonetisation.
Every section of society is facing problems due to the rising prices of petrol and diesel, the main reason for inflation, he said.
Instead of the common man, big companies have got tax exemptions, he noted.
Earlier, Sinha submitted a memorandum to the Narsinghpur district collector, supporting local farmers who protested against the NTPC for not fulfilling the promises made while acquiring land for its 1,600 MW Gadarwara power project.