that is true that no one should travel if the visa is on the old passport IF YOU ARE EXITING FROM QATAR. IF YOU ARE FROM QATAR AND GOING BACK TO INDIA, YOU ARE NOT ALLOWED TO TRAVEL. YOU HAVE TO TRANSFER YOUR VISA TO YOUR NEW PASSPORT but, if you are travelling from india to qatar and your visa is on your old passport, you are allowed to travel but once you arrive in doha, you have to transfer your visa to your new passport.
that is true that no one should travel if the visa is on the old passport IF YOU ARE EXITING FROM QATAR. IF YOU ARE FROM QATAR AND GOING BACK TO INDIA, YOU ARE NOT ALLOWED TO TRAVEL. YOU HAVE TO TRANSFER YOUR VISA TO YOUR NEW PASSPORT but, if you are travelling from india to qatar and your visa is on your old passport, you are allowed to travel but once you arrive in doha, you have to transfer your visa to your new passport.