Sharad Pawar has categorically said his Nationalist Congress Party will not end its partnership with the Congress in Maharashtra following his nephew and the state's Deputy Chief Minister Ajit Pawar resigning this evening over allegations of an irrigation scam. But 19 other NCP ministers in the coalition state government have sent resignation letters too, amid speculation that a Sharad Pawar versus Ajit Pawar, uncle versus nephew, internal power struggle is playing out alongside the less secret one between the ruling coalition partners, the NCP and Congress.