“The Knowledge Library”

Knowledge for All, without Barriers……….
An Initiative by: Kausik Chakraborty.

Vocabulary For All Competitive Exams | 14.02.2026

Vocabulary For All Competitive Exams | 14-02-2026 Having a good command of Vocabulary will help you to ace many competitive exams. So here We bring you “Vocabulary For All Competitive Exams” on a daily basis to boost Vocabulary Power and helps you in your preparation for exams like Banking, Railway, Insurance, SSC, and other Government exams. Unravel Read more…

Important Dynasties

Important Dynasties Slave Dynasty: 1193 – Muhammad Ghori 1206 – Qutbuddin Aibak 1210 – Aram Shah 1211 – Iltutmish 1236 – Ruknuddin Firoz Shah 1236 – Razia Sultan 1240 – Muizuddin Bahram Shah 1242 – Allauddin Masud Shah 1246 – Nasiruddin Mahmud 1266 – Ghiyasuddin Balban 1286 – Kai Khusro 1287 – Muizuddin Kaiqubad 1290 Read more…

Vitamins and Their Chemical Names

Vitamins and Their Chemical Names 👉 Vitamin A Chemical Name: Retinol Deficiency Disease: Night Blindness Source: Carrots, Milk, Eggs, Fruits 👉 Vitamin B1 Chemical Name: Thiamine Deficiency Disease: Beriberi Source: Peanuts, Potatoes, Vegetables 👉 Vitamin B2 Chemical Name: Riboflavin Deficiency Disease: Skin Cracking, Eye Disease Source: Eggs, Milk, Green Vegetables 👉 Vitamin B3 Chemical Name: Read more…

Computer General Knowledge

Computer General Knowledge ➖A computer is an electronic machine. ➖Charles Babbage is called the father of the modern computer. ➖Pascal invented the calculator. ➖The first computer manufactured in India was Siddhartha. ➖The largest computer network is the Internet. ➖India’s first computer was installed in the General Post Office in Bangalore. ➖The Internet was first used Read more…

Important Battles

Important Battles ✳️Battle of the Hydaspes 🔻Time: 326 BC 🔻Between whom – Alexander and King Porus of Punjab, in which Alexander was victorious. ✳️Battle of Kalinga 🔻Time: 261 BC 🔻Between whom – Emperor Ashoka attacked Kalinga. Seeing the bloodshed of the war, he vowed not to fight. ✳️Battle of Sindh 🔻Time: 712 AD 🔻Between whom Read more…

Important Books & Authors of Ancient Times

Important Books & Authors of Ancient Times 1. Astadhyayi→Pāṇini 2. Ramayana→Valmiki 3. Mahabharata→Vedavyas 4. Arthashastra→Chanakya 5. Mahabhashya→Patanjali 6. Satsahasarika Sutra→Nagarjuna 7. Buddhacharita→Aśvaghoṣa 8. Soundararajananda→Aśvaghoṣa 9. Mahavibhaṣāśāstra→Vasumitra 10. Swapnavasavadatta→Bhāsa 11. Kama Sutra→Vatsyayana 12. Kumarasambhavam→Kalidasa 13. Abhijñānaśākuntalam→Kalidasa 14. Vikramūrvasiya→Kalidasa 15. Meghadoot→Kalidasa 16. Raghuvaṃsham→Kalidasa 17. Malavikagnimitram→Kalidasa 18. Natyaśāstra→Bharatmuni 19 Devichandragupta → Vishakhadatta 20 Mricchakatikam → Shudraka 21 Surya Read more…

Measuring Instruments

Measuring Instruments 1) Altimeter → Scientific instrument for indicating altitude 2) Ammeter → Measures electric current 3) Anemometer → Measures wind speed 4) Audiophone → Improves hearing 5) Binoculars → Views distant objects 6) Barograph → Measures atmospheric pressure 7) Crescograph → Records plant growth 8) Chronometer → A ship’s clock for accurate timekeeping 9) Read more…

Facts about Mountains / Hills of India

Facts about Mountains / Hills of India Karakoram, Kailash Range – India and China Ladakh Range – India (Jammu and Kashmir) Zaskar Range – Jammu and Kashmir Pir Panjal Range – Jammu and Kashmir Nanga Parbat (8126) – Jammu and Kashmir Kamet Mountains (7756) – Uttaranchal Nanda Devi (7817) – Uttaranchal Dhaulagiri (8172) – Himachal Read more…

Indian Constitution – Questions and Answers

Indian Constitution – Questions and Answers Question 1 – When did the Indian Constituent Assembly first meet? Answer – December 9, 1946. Question 2 – Who was the permanent President of the Constituent Assembly? Answer – Dr. Rajendra Prasad. Question 3 – Who was the temporary President of the Constituent Assembly? Answer – Dr. Sachchidanand Read more…

Important Science Facts

Important Science Facts Astigmatism is a disease of the eyes. When is World Health Day celebrated? April 7th. Melaconite is an ore of which metal? – Copper Which acid is used in glass storage batteries? – Sulfuric acid. Approximately how many liters of blood does the human body contain? – 6 liters. Who first observed Read more…

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