: A complete PDF of the 3rd Edition is often hosted on college servers, which includes the "Solutions (or Hints) to Chapter-end Exercises" starting around page 375.
(Published by PHI Learning) is a staple textbook for Computer Science students. It is favored for its mathematical rigor and the clear progression from basic automata to complex computational theory. klp mishra theory of computation full solution link
Here is a fully worked solution to a problem typical of those found in of the Mishra text. : A complete PDF of the 3rd Edition
There is no single official "Solution Manual" PDF hosted freely by the publisher (PHI Learning) for this specific book. However, because this is a standard textbook for GATE preparation, klp mishra theory of computation full solution link