hello sir good morning sir mera beta 22months old h lkin wo kuch nhi bolta h, logo se bilkul attract nhi hota, mumma papa bolna ata h use lkin bolta nhi h wo, mere awaz dene pe bhi wo response nhi karta. jab wo rhymes dekhta hai to bht kuch bolta h Or bht sari activities bhi karta h lkin hmlog ko respond nhi karta h. sir please suggest me kaise treat karu