He also slammed the Naveen Patnaik government for its "incompetence", saying benefits of over Rs 4 lakh crore given by the Centre to the state had not reached the masses.
The BJP president, who is on a three-day tour of Odisha, pitched for a younger leadership to run the state and came down heavily on Chief Minister Naveen Patnaik, saying backwardness and poverty continued due to his government's "misrule, inefficiency and corruption".
Shah, however, parried a query on who would be the BJP's face in the state, saying the party had not decided on it.
He also claimed that his party would win over 120 seats in the 147-member assembly.
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Asked how his party planned to go to 120 from the 10 it bagged in 2014, Shah said his party won over three-fourths of the seats in Uttar Pradesh after getting only 15 per cent votes in the previous poll. He added that the BJP had won 18 per cent votes in the eastern state.
The BJP had received huge support from people in the last panchayat elections held earlier this year, he noted.
Shah evaded a question on whether Prime Minister Narendra Modi would contest the next Lok Sabha poll from Puri after having fought from Varanasi last time and said the parliamentary election was "far away".
Sharpening his attack on the state government, he alleged that people associated closely with the government were involved in scandals, including the multi-crore chit-fund scam and the mining scam.
A BJP government in the state will ensure that no one involved in scams goes free, he said.
Shah also referred to the incident of a tribal man, Dana Majhi, who walked over 12 km carrying the body of his wife on his shoulder from a government hospital in Kalahandi district after being denied a hearse a year ago.
Taking a dig at Patnaik, the BJP chief said celebrations on winning the best administrator award given by a news magazine alone was not going to remove backwardness. Odisha lags far behind other states despite substantial central assistance and support.
The BJP wave is sweeping all over the country and the same trend will be witnessed in Odisha, he said.
"Funds to the tune Rs 3,94,994 lakh crore, almost Rs 4 lakh crore, have been announced by the Centre for Odisha for various works. But required support from the state to implement developmental projects is lacking and people have not received due benefits," he said.
The state received Rs 68,196 crore as its share of central taxes under the 13th Finance Commission when the UPA was in power and it had gone to Rs 1,84,070 crore under the 14th Finance Commission report implemented by the Modi government.
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