Trinamool Congress general secretary and former railway minister Mukul Roy, summoned by the CBI in the Saradha scam, said Wednesday he will contact probe agency about his appearance.On his return here from Delhi, Roy, considered West Bengal Chief Minister Mamata Banerjee's right hand man and number two in the Trinamool, said he will discuss the issue with his party leaders. "I have returned today. I will establish contact with them (CBI) and tell them when I will go there. I will discuss (the issue) with my party leaders," Roy, a Rajya Sabha member, said on his arrival here.Roy reiterated that he was not involved in any kind of unethical activity."I reiterate that never in my life I have been involved in any unethical activity," added Roy.