Dear Sir, My child(son) is 17 months old and he is not gaining weight,not able to sit and stand independently , not even Learning the things, neither recognising the Parents . His Muscle tone is week, there is no stiffness in any part of the body,Clumsy Structure. Presently we are going for PHYSIOTHERAPY. So PLease do suggest me the good Doctors and Clinic in India, Delhi for this ......

Summarized question: What causes developmental delay in baby?