dear jatin,
starting to work in early intervention is a real responsability. I suggest you read as much as you can about normal and abnormal development. If you like I can send you a lot more information ( send me a email = [email protected]). For a start you could go to Ontwikkelingsneurologie|Developmental Neurology and order the dvd on GM´s = general movements.( Prechtl and Hadders-Algra Go to the Welcome to the World Confederation for Physical Therapy under forum paediatrics for a list of neurological sites worth visiting.
Read as much on motor planning and brain plasticity as possible ( lots for free information on the internet ). Fysiok from france spoke of a centre for early intervention. But early intervention is also done individually and in private practices... it depends on your countries and its medical culture.
Read, study and try find a good paeditric physiotherapy course...

esther