My wife is worried that my four-year-old son is getting to attached to my mother. I am happy that he really likes his dadi but am also worried about my wife. What should I do?

i think your wife is getting insecure, but as long as your child is happy, it should not be a problem. ask her to spend more fun time with the child, but make sure that she does not tell him to spend less time with the grandparents. it is good that he is in a loving bond with his dadi, and your wife i am sure is able to make good use of that time. tell her to play and have more fun activities with the child whenever she can.