Dear Raje,
In regard to your question of which broker is a good one I'm afraid there is no straight forward answer, it depends on what your priorities are.
As you have asked in regard to low fees and margin money I would say Reliancemoney and RKglobal but remember these brokers may have other drawbacks.
You can start with 10K in the cash market but it will take a great effort on your part to adhere to good position sizing and money management techniques. The problem with undersized accounts is you will tend to take larger risks to gratify yourself with large value winnings and it becomes harder to recover from draw-downs.
This is why under capitalized accounts are considered a major reason for new traders blowing there accounts. However if you have the discipline you will succeed but the chances are slim.
Happy trading