Hi FKL,
Thanks for your quick response. Yes, its a multiple entry visa and issued until my WP expires and I declared stay as more than 6 months while filling their applications and done the medicals in India itself. I will book one way ticket only. Thanks for your response. In case if they ask me to show two way tickets to my kids, what should I do? Any Idea to explain the airport authority or immigration in India while boarding. Last time it was so painful, they weren't allowed my 3 years kids to boarding. Finally I argued them and came to Canada with my younger kid.
Thanks,
kalpan