The journey of all these years has been satisfying, Abu Jani told IANS.
"It is very satisfying. I think everybody should at least take a look at the book to know what Abu-Sandeep are all about and what they do," he said.
The event was marked by an exhibition of their work and of a few pictures from the book, launched in association with international auctioneers Sotheby's.
Among the designer duo's regular clientele are Bollywood's Bachchan family - Amitabh, Jaya, Abhishek, Aishwarya and Shweta.
Khosla said they have always tried to make a difference and worked very hard.
"We have set our own rules. Now people will get to know a part of Abu-Sandeep's life. It is interesting and exciting," Khosla told IANS.
Asked what is next on the platter, Khosla replied confidently: "Work for another 25 years."