Hey Akash, For this time span you can go with the below itinerary which would also keep your 2 year old kid happy and excited:- Day 1 - Kuala Lumpur city tour with a visit also to Batu caves and Genting Highlands ... Day 2 - Cameron Highlands Trip ... Day 3 - Penang city tour for whole day ... Day 4 - Stroll around Langkawi island ... If you have time you can also include putrajaya in the itinerary .... Day 5 can be a buffer Day or a day where you just click around the city ... Happy Travelling Bro!!!
Welcome Akash ... For maximum baggage allowance freely .. go with Malaysian airlines ... it has 30 kg pp and also Singapore airlines is good... it also has an infant 10kg option as luggage allowance ....