The book "Indian Polity" by M. Laxmikanth is a popular and highly recommended book for anyone preparing for civil services exams, especially in India. The book covers various aspects of Indian polity, including the Constitution, governance, and politics.
The Telugu version of the book is also available in PDF format, which can be downloaded from various online sources. However, I would like to clarify that downloading copyrighted materials without proper permission or license may be illegal.