It all depends on why you neded a C-section the first time, whether the scar (the one in the uterus not the external scar) has healed well and the baby's size/position/complications and your health this time. Latha is right that in India the concept of VBAC (vaginal birth after C section) is not a popular one and older docs esp will not agree to try for a vaginal delivery. Try to find an OBG who supports you in this.
It is our choices...that show what we truly are, far more than our abilities.
- J.K Rowling
(Harry Potter and The Chamber of Secrets)