Kitab Bot

Overview

Students use it before an exam for definitions, laws, and numericals, on a phone, without an account. When the evidence is weak, the assistant says the topic is not covered instead of guessing.

What we built

Kitab Bot is a production study assistant for students on the Federal, Punjab, Edexcel, and Cambridge syllabi. A student selects the board, class, and subject, asks a question from that textbook, and receives an answer drawn from the book, with the page number. The same page can be opened and checked.

Key features

• Board, class, and subject selection across Federal, Punjab, Edexcel, and Cambridge
• Answers drawn from the textbook, with a checkable page number
• Hybrid semantic and keyword retrieval with a reranker
• Says so when a topic is not covered, rather than guessing
• Cache for repeated questions on the same book
• Phone-first, no account needed

Architecture

The system indexes 51 official textbooks, about 13,600 pages. Each page is stored as a semantic embedding and a keyword index. A question is searched in both, limited to the selected book. The two result lists are merged, and a reranker keeps only the pages that match strongly. The answer is written solely from those pages. Repeated questions on the same book are served from a local cache when the wording is effectively the same.

Results

• 51 official textbooks indexed, about 13,600 pages
• On questions within the selected textbook, the cited page is correct about 98% of the time