Absence from election duty on medical grounds

Hello experts, One of my relatives has been appointed as presiding officer for BYE ELECTIONS 2017. He has been undergoing mental treatment for 4 months from a prestigious govt. hospital, but somehow he managed to attend his trainings. But his mental condition deteriorated further and has been advised for rest. The duration of rest also includes date of POLLING.My relatives have already provided election authorities including Returning officer his complete treatment report along with medical certificate issued by doctor. But the officials didnot reply.If message comes for duty AND HE DOES NOT ATTEND DUTY, WHAT CAN BE THE CONSEQUENCES FOR THIS?? PLEASE REPLY URGENTLY