Ok thanks for the info guys, yes it's true requirements vary from region to region.
I'm currently doing my MCC (Microlight compentency certificate) and my ground instructor, who is a first officer on a B-737 in our national airline, Pakistan International Airline, recommended me to do the multi-engine turbine endorsement after doing CPL/IR/ME/ATPL. Although it's not required to apply in PIA, there must be something in it if he's recommending in it.
Can anyone please tell me how long does it take to get the multi engine turbine and how long is it valid before renewal is due. Thanx.