Samanya Hindi by Dr D K Paneru and Dr B R Paneru covers complete coverage of syllabus of Hindi Vyakaran. Very useful book for cometition exams like State PCS, UPSC, UPSSSC, UP PET, UKSSSC and many other exams.
Devbhoomi Prakashan, Haldwani
Dr. D.K. Paneru and Dr. B.R. Paneru