This document provides an overview of the Indian securities market, including the primary and secondary markets. It discusses the leading stock exchanges in India - NSE and BSE - and lists some of the regional stock exchanges. It describes the trading systems used, including NEAT, and explains concepts like circuits and the transaction cycle. It also summarizes trading in derivatives and futures markets, clearing and settlement processes, and references some important websites for market data and analysis. Towards the end, it presents the author's invented formula for intraday trading based on high, low and average prices and volume.