This Question Bank by Full marks is a really useful option for 9 Class students to score good marks in Hindi language and literature both I personally used it and scored 85 marks but if you used it properly you can easily achieve 90-95 marks
This book is a complete package of
:Hindi language (writing and grammar)
Chapters explained
Solved exercises
Self assessment

:Hindi literature
Writer's introduction
Summary of each chapter
Word meaning( शब्दार्थ)
Questions based on comprehension (अर्थ-ग्रहण संबंधी प्रश्न)
Question practice
(प्रश्न अभ्यास)
Composition and expression
(रचना और अभिव्यक्ति)
Extra solved questions
(VSA SA and LA)