This book is a compendium of papers presented and circulated in the International Seminar on Defence Acquisition organized by the Institute for Defence Studies and Analyses on July 1214 2011. It contains 29 chapters organized in nine key themes: technical requirement and capability definition; technical and commercial evaluation challenges; optimal procedural framework; contract implementation and project management; logistics management; offsets; defence industrial and R&D base; oversight, organisational structure and human resource in defence acquisition. Written by the practitioners, industry leaders and subject experts. The book brings out the best international practices in defence acquisition.