Hi,
thank you for your replies and my apologies for evidently not being clear regarding my situation. I am looking at one PNR only. But I have two options at the same price:
A. Buying YUL-India say as one sector with a long 12 hours layover in LHR.
B. Making "multi city" booking and Buying yul-lhr and lhr- india as two separate segments but on the same PNR.
thanks once again in advance for your time and valuable advice.
Regards
Vik