Which is the best textbook for obstetrics and gynaecology?

i am studying shaw's textbook for gynaecology and for obs. The book by dr. Dc dutta. While both the books are pretty good i would like some alternatives from which it will be easy to revise. Anyone got a better option?Which is the best textbook for obstetrics and gynaecology?
I read Dutta and Shaw for OBG - I believe they are best books for a UG student.

There's a new Obstetrics textbook by Sheela Balakrishnan. Some of my friends follow that book, they basically find it much easier to learn from than Dutta.Which is the best textbook for obstetrics and gynaecology?
for undergraduate level both the books are very good for study and easy to remember.Especially summary given at the end of the topic in DR.D.C.Dutta.Which is the best textbook for obstetrics and gynaecology?
Obstertics and Gynaecology
Textbook of obsterics and gynaecology--V.L. BHARGAVA....is a very good book other than u r reading....