What you are going through Raman, is a very common situation which a lot of married couples face. Lack of intimacy could result from lower sexual drive or temporary emotional detachment. This can easily be sorted. All you need to do is to take steps to gain add more intimacy in your marriage. Go to bed at the same time as your wife; separate bed times can cause separateness. Compliment your wife each day and make her feel special so that she feels wanted. Take her out on romantic dates to express your feelings and make really really personal and enjoyable. And most of all, listen to your wife; she could be going through an emotional phase which is making her less interested in sex. When you two will talk it out, a sense of companionship will build. I hope this will help you.