Some straight talk by the Infosys board put co-founder NR Narayana Murthy on the defensive on Friday.“Checks and balances are required in every company, and I was only doing that,” Murthy said after the company board squarely blamed his ‘misguided’ campaign against the company management for the exit of CEO and MD Vishal Sikka “We believe we must set the record straight on false and misleading charges by Murthy,” Infosys Chairman R Seshasayee and co-chair Ravi Venkatesan said in a conference call hours after Sikka sent in his papers.R Seshasayee added distractions in recent past impacted Vishal Sikka and bound to impact others.Seshasayee also said there was no change in buyback plans. “We have made commitment on how much and when to return cash to shareholders,” he added.The company also said that claims of whistleblower allegations were baseless.Seshasayee also said there was no change in buyback plans. “We have made commitment on how much and when to return cash to shareholders,” he added.They said Murthy's actions and demands had been damaging for the company. “The board denounces the critics who have amplified and sought to further promote demonstrably false allegations which have harmed employee morale and contributed to the loss of the company’s valued CEO.”Murthy said he was deeply anguished by the tone and tenor of the statements. He fumed over Sikka's allegations, and said it was below his dignity to respond to such baseless allegations.Without naming anyone, Sikka said it was tough to wake up to the same nonsense every morning.He said attacks on him amplified by people who should have supported. “The recent personal attacks undermined good work done at Infosys spent 100s of hours tackling drumbeat of distraction,” he said.“After much contemplation I have decided to leave because the distractions, the very public noise around us, have created an untenable atmosphere,” Sikka wrote on his blog after the announcement.“Life is too short to engage in battles of opinions in the public, these add no value, take critical time and focus away from the business, and indeed add more to the noise, to the eardrum buzz,” he said.