New Delhi: Prime Minister Narendra Modi has penned a book advising students how to battle exam stress, complete with tips on yoga and pranayama.

Exam Warriors, released on Saturday, comes ahead of the season for the Class X and XII board exams, many among whose candidates will be eligible to vote in the next general election.

The book contains 25 maxims to motivate students to face their examinations. Many of these are explained with examples and anecdotes.

"As one journey ends, another journey begins," goes one of the dictums, with Modi urging students to choose a career they feel a passion for after their board exams.

"Trying to become someone is a conventional path.... Take the road less travelled," he advises.

The book gives details about several yoga asanas. On the helpfulness of yoga, it says: "The overall impact is that memory, concentration and confidence are boosted. As exam warriors, these are three things you will need the most. Yoga helps you with all three."

Foreign minister Sushma Swaraj and human resource development minister Prakash Javadekar released the book. "The Prime Minister makes the point that (just) like we are not scared of elections, you should not be scared of examinations," Sushma said.

Javadekar said: "He (Modi) has written on an issue that is not political but is linked to everybody."

Drawing on his own experience of the 2012 Gujarat elections, Modi has advised students not to worry about errors committed in exams. For, "exams are like festivals - celebrate them".

While explaining the maxim "be a warrior, not a worrier", he has held up the example of Rani Laxmibai of Jhansi.

"During the first war of independence (in 1857), when the imperialist forces were closing in, she had two choices -- to be a worrier or a warrior. She did not bow down and chose instead to fight, thus becoming immortalised as one of the greatest freedom fighters India has ever produced," Modi writes.

On the maxim "Compete -- with yourself", the Prime Minister says: "See yourself as your own competitor instead of competing with others."

He adds: "Temporary competitions may damage friendship permanently. Competing with yourself makes you better."