chandigarh the punjab vigilance bureau has summoned former chief secretary sarvesh kaushal on january 9 to mohali for questioning in the alleged multicrore irrigation scam of the sadbjp regime between 2012 and 2017on his return to india from the usa last month kaushal had written to vigilance bureau chief director varinder kumar on december 28 asking him to inform dates on which his presence was required in the ongoing inquirykaushal had communicated that he had plans to travel outside chandigarh for meeting personal professional and other commitments in january and he wanted to ensure that his absence from the city might not be felt as a delaying tactic on his partbesides kaushal former special chief secretary kbs sidhu former irrigation ministers sharanjit singh dhillon and janmeja singh sekhon and former secretary of the irrigation department kahan singh pannu are under the vigilance bureau scanner for allegedly taking bribes in crores for favouring contractor gurinder singh who was illegally allotted works of over rs 1200 crore during the sadbjp regime