'Objective Railway Engineering - Track, Works & Others' is the third revised and enlarged edition of the book originally written in 2007.
The current book covers almost all aspects of civil engineering, including track and bridges.
Aggarwal, an engineer, has served railways for 33 years and retired as Chief Engineer, according to a release.
An Indira Gandhi Rajbhasa Awardee, Agarwal has written seven books on various aspects of Railway Engineering in the past.
The book release function was attended by senior railway officials.