Very good pen. This is my first fountain pen in years and has impressed me a lot. Very classy build and very smooth nib. Decent service by flipkart. However, I have to still find a good ink for the pen since I am little disappointed by parker ink which I purchased from outside.
A very good book on the subject. A person having interest over data security should have this book. What is good about this book is the little introduction of number theory which is just adequate to understand the subject nicely.
Also very good service by flipkart, got it within 24 hrs.