As i know about the new law in qatar , when u come on new visa to qatar u must spend 1 year with your sponsor after that u can go to transfer ur sponsorship to another one.. as this rule was 2 years of time before but now they made it for 1 year, u can go to immigration dept,or labour dept and u can confirm this. about the NOC letter if ur first sponsor gives it to u so u can work with that but can't change ur sponsor ship.
As i know about the new law in qatar , when u come on new visa to qatar u must spend 1 year with your sponsor after that u can go to transfer ur sponsorship to another one.. as this rule was 2 years of time before but now they made it for 1 year, u can go to immigration dept,or labour dept and u can confirm this. about the NOC letter if ur first sponsor gives it to u so u can work with that but can't change ur sponsor ship.