I think asking someone who has just done this trip about carry on luggage is A GREAT IDEA I will do that and post the answer. It certainly could help.

Sometimes they weigh, sometimes they dont. Sometimes size is strictly enforced other times you see people taking on massive back packs. Even the person who checks you in on the flight can make a difference. One a stickler for the rules another who lets things slide.

I cannot tell you how often I have stressed over this I think we all do. Our cameras and computers have to be carried on that is for sure! I always worry that my bags will be lost and with good reason I cannot tell you how many times that has happened to us.
So then I want a FEW clothes and all of a sudden you have more than intended.

On a Air New Zealand domestic flight in January they had a low weight limit and the one bag rule and for some reason I abided by that and weighed everything before we left. |Good thing because they were so strict! They weight each bag as you boarded the plane and it had to be approved. Never seen anything like that before.

I looked at the Air India web site and it pretty well says ONE bag and not a bag and small personal bag. It states this for ALL classes of service. I think I will adhere to the rules and then grin and bear it when someone walks on with TWO BIG bags. You know it could happen.

. What are the limitations on carriage of hand/cabin baggage?
A. The carriage of hand/cabin baggage is limited to one piece weighing not more than 8 kgs. This applies to all classes of travel and all flights on our network. The hand/cabin baggage should be suitable to place in the closed overhead rack or under the passenger seat, provided the sum of the 3 dimensions of all such carry on items does not exceed 45 inches or 115cms.