"The book NCERT MCQs General Science & Technology Class 6 to 12: Useful Book for UPSC, State PSCs & All Competitive Exams – Chapter-wise and Topic-wise Solved Paper 2025 and 1300+ Questions is a comprehensive resource designed for students and aspirants preparing for competitive exams such as UPSC Civil Services Exam, State PSCs, and other exams that assess general knowledge.

1300+ MCQs from NCERT Textbooks: The book includes over 1300 multiple-choice questions (MCQs), which are derived from the NCERT textbooks of Class 6 to 12. These questions cover all major areas of General Science (Physics, Chemistry, Biology) and Technology (latest developments, innovations, and applications).

Chapter-wise and Topic-wise Organization: The MCQs are organized in a chapter-wise and topic-wise manner, which makes it easier for students to focus on specific sections of the syllabus and prepare efficiently. This structured approach helps in systematic learning and targeted revision.

Comprehensive Coverage: The book covers a wide range of topics in General Science and Technology, including:Physics (Mechanics, Thermodynamics, Optics, Electricity, Magnetism, etc.) Chemistry (Inorganic Chemistry, Organic Chemistry, Environmental Chemistry, etc.) Biology (Botany, Zoology, Human Anatomy, Ecology, etc.)"

Dr. Ranjit Kumar Singh, IAS Officer from Gujarat cadre of batch-2008 was born in Desari village of Vaishali district in Bihar. Dr. Ranjit Kumar Singh obtained his Bachelor's degree from Patna College (Patna University). Besides this Dr. Singh also holds a degree of LLB from Patna Law College (Patna University) and after post-graduation, he obtained his degree of Ph.D from Patna University.

He worked at various high positions in the state and also worked as the Director in the Panchayati Raj Department. Prior to this, he was the District Collector-Cum-District Magistrate, Sitamarhi and also worked as Director of the Primary Education Department.

He has provided free training to more than 1850 candidates preparing for civil services examinations through an organization named 'Mission 50' in Patna. He has been honoured with 'Best Leadership Award' and 'Mahatma Gandhi Swachh Survekshan Puraskar, and also received many national and international awards for his notable work dedicated to the society.