I cannot really answer your question from a distance. By definition, a "deformational" change is one that results from pressure and not from an underlying problem with the brain or skull. From your description, this seems to be the explanation for your baby's problem. It that is the case, it may be possible to improve the deformation as I discussed previously.
If that is not the case, and there is an underlying problem with the brain or skull, then it may be more difficult to improve the appearance. You should ask your doctor about these issues. Depending upon your resources, you may want to see if you can get a referral somewhere else if there are no local physicians who can help you.
Thank you for your answer.
I want to ask only one thing-How seriously is this deformation ?
(because in my small country nobody can say anything concrete about this)
Changes in the skull of an infant from pressure are called "deformation" problems. This means that there are no underlying problems, only changes that result from unusual pressure during development of the skull.
In some cases, a pediatrician or consulting neurosurgeon will recommend special helmets that can help to improve deformational changes. Under other circumstances, craniofacial surgeons can be consulted for possible surgical options
Discuss with your pediatrician what he/she thinks are the best options for treatment at this point in time.