Subject-Wise & Topic-Wise Study Library
Search and filter video links, detailed study text/notes, and standard reference books for HPSC, KVS, NVS, Programmer & Instructor exams.
Computer Science with Python (Class XI & XII NCERT + Sumita Arora)
Essential for KVS PGT CS, NVS PGT, DSSSB & HPSC PGT exams where NCERT Python, Pandas, File Handling & SQL connectivity dominate.
Database System Concepts (7th Edition)
Standard textbook from which direct theoretical & numerical questions on Normalization, SQL, and Concurrency Control are framed in HPSC & Programmer exams.
Operating System Concepts (10th Edition - Dinosaur Book)
The gold-standard reference book for HPSC PGT CS, RPSC Programmer & GATE-level OS concepts, synchronization, and memory management.
Binary Trees, BST, AVL & B-Tree Formula Cheat Sheet for Competitive Exams
All direct formulas for leaf nodes, height of binary trees, number of unlabeled binary trees (Catalan Number), and Heap time complexities.
SQL Clauses Execution Order, Joins & Aggregate Functions Revision Sheet
Exact order of SQL execution, NULL handling in COUNT(*) vs COUNT(col), and Correlated Subquery shortcuts.
Python One-Shot Marathon for KVS PGT, HPSC & NVS (Output Questions)
Covers Python string/list slicing with negative step, mutable default arguments, tuple unpacking, and file handling modes.
Normalization (1NF, 2NF, 3NF, BCNF) — Find Normal Form in 30 Seconds!
Step-by-step method to find Candidate Keys using Attribute Closure and identify the highest Normal Form in exam questions.
Complete CPU Scheduling (FCFS, SJF, SRTF, Round Robin) with PYQs
Master all CPU Scheduling numericals for HPSC PGT, KVS, NVS & Programmer exams with shortcut Gantt chart tricks.