This is a textbook of Geography which is called India: Physical Environment for the students of class XI of humanities/arts stream studying though English medium. This textbook is prescribed in schools since it has been devised according to CBSE Board guidelines. It is published by NCERT.
About NCERT
NCERT (National Council of Research and Training) publish books for class I to XII under the guidelines of CBSE board which is followed by both public and private schools. It is one of the foremost education boards of India.