Hi Harmanmeet
Its good to see that you are packing your bags for Canada. Congrats bro.
Regarding the weight limit following are the details for AI
2 Suitcases : 23 kg each
1 Hand Bag : 8 KG
1 Laptop (if any)
http://canada-spp.com/list-of-things-to-carry-to-canada-1/
Regards,
Hardeep
