Dear Stumper,
For funds transfer, one has to fill in a simple form (for RBI) and can transfer funds online (Contact your bankers). For brokerage, etc., it would be advisable to visit the respective website (of the trading house) and read thoroughly the terms and conditions, because some brokers charge a nominal (0.05%) brokerage, but that is subject to a minimum of, say 5 pounds, which is clearly excessive for us Indians.