What exactly is Dow Theory in technical analysis and does it really work in the Indian markets?

How exactly does technical analysis work in the markets and can I use technicals for trading equities, commodities and currency futures?

What do we exactly mean by technical analysis in stock markets?

I have heard that technicals are largely based on something called the Dow Theory? What is Dow Theory and how does it work?

I just read that the GDP growth for the fourth quarter has slowed down to 5.8%. Is the Indian economy really slowdown and what does it mean for markets?

I understand that Indian markets operate on the best bid-ask principle. What exactly that and how is it important to an investor?

What exactly is the Percent B (%B) indicator in technical analysis and how is it useful?

Why did Moody Investor Services recently downgrade India rating and what does that really man for Indian companies?

What are participatory notes (PN) and what is the size of the PNs in the Indian markets with reference to FPI investments?

What are the some of the key technical indicators for the intraday trading segment in the Indian markets?

Will India really benefit from weak oil prices or will the slowdown hit the Indian economy?