I love the section in Business Line every Monday called "Mentor". This week, it is on Arbitrage, anomalies and autos.
Easy to follow.
We see arbitrage almost every day, but it is not always easy to make use of the arbitrage to benefit from it.
The article also explains why the stock price in India, and the corresponding ADRs in US markets differ widely, prompting a lot of companies to consider a sponsored ADR.