My wife spends more time with my kids than me and hence my kids are closer to her. They share everything with her but not me. This hurts me at times and I feel that they are drifting away from me. Please suggest me how do I avoid this.

Hey Daddy! Try to get involved and take the initiative to take part in the activities along with them. Volunteer yourself with a smile. Spend more quality rather then quantity with both your wife and kids. Aside to you and your wife, perhaps you can suggest activities which are free, such as taking a stroll, going to a park or even whipping up dinner with everyone. It may turn out to be a mess, results are not as important as the experience. In time, everything will fall in place. Try it out. Thats what my husband did, there was even a period of time when i was left out. And i had to out in extra efforts to get back in the circle. Also i spoke to my husband and told him how i felt. Worked for me and i hope it would for you too. All the best, stay strong daddy!