Khara Mitra Marathi Story Book is a free educational and reference book available on Android, written by the well-known Marathi author, Sane Guruji. The book portrays the life of Pandurang Sadashiv Sane, also known as Sane Guruji, who was a great social activist, patriot, and famous Marathi author. The book has been written in Marathi and consists of approximately 73 books written by Sane Guruji. The book is a great source of inspiration for readers as it highlights the importance of self-reliance and attitude of service through the author's own examples.

Sane Guruji was born in Palgad in the Konkan region and was greatly influenced by his mother's coaching. He graduated with a degree in Marathi and Sanskrit, earned a Master's degree in Philosophy, and later joined the teaching profession at the Pratap High School in Amalner. He was also the hostel warden, and this gave him a lot of scope to teach his students about self-reliance and attitude of service through his own examples. Khara Mitra Marathi Story Book is a great addition to the educational and reference category, and it's a must-read for anyone who wants to learn more about Sane Guruji and his works.