BENGALURU: Former Infosys CFO Rajiv Bansal has invoked the arbitration clause in his severance contract asking for the rest of his allotted payout, a source with knowledge of the matter said.Bansal’s severance payout has been at the heart of the governance battle being waged at Infosys’ board. When Bansal left in 2015, Infosys had agreed to pay him Rs 17.38 crore as severance, about two years of pay. But the company paid out only about Rs 5 crore before suspending the payments.Bansal has invoked his rights to an arbitral tribunal, and former Supreme Court judge RV Raveendran has been appointed sole arbitrator in the case. The first arbitration meeting is scheduled in May, said sources familiar with the development. Law firm Indus Law is representing Bansal, while Nishith Desai Associates is Infosys's counsel in the matter.“Certain payments to Rajiv under the agreement have been suspended pending certain clarifications with regard to such rights and obligations," Infosys had said in a statement.The suspension came as promoters led by NR Narayana Murthy questioned the payout. Murthy has gone so far as to the say the severance had the appearance of ‘hush money.’Though Infosys has declined any irregularities, the company admitted that the severance payout was subjective and has since institutionalized a process for granting severance.“The company has already clarified on the severance package for the former CFO Rajiv Bansal through a detailed statement. We do not have anything additional to add at this point,” Infosys said in a statement. News of the arbitration was first broken by The Times of India.Bansal did not respond to a call and a message seeking comment.(With TNN inputs)