Hi..am a nurse..i got a employment visa of oman which is not stamped as i still not enter to oman in india only..If that visa expire by the three month period then i have the following doubts 1)is the visa need to be cancelled by the sponser if i need to take other visa?(2)does it affect me for getting other job in oman,any ban for 2 years??(still not issued labour card as the visa not stamped only i signed the contract with the hospital)3)Any need for noc from that employer???plz give necessary sugestions