Yes mundan or shaving makes hair grow thicker and gives good hair growth. This is completely your wish if u want to go for it or not. we have compulsary ritual to shave the head of babies at certain age. My daughter gad very less hair growth at the time of birth and after mundan the hair growth is good now.

i don't wish to cut her hairs wil it make difference???

Hi. Many in fact most families do practice Mundan and remove baby's hair completely. From my experience it made the hair thicker hair growth was the same.