I want to know how to do ‘options writing’. What are factors need to consider. Is it possible to do it for intraday? Is there any EA and how to do back test for this in PI?
Is there any useful material or links for more details?
Any body doing options writing in bangalore, 
Check this to know more on option writing: http://zerodha.com/z-connect/queries/stock-and-fo-queries/basics-on-options-shortingwriting
Also check out the Varsity option module which is on its way to completion: http://zerodha.com/varsity/
Yes Option writing can be an intraday strategy.
EA can be used for technical analysis strategies, so if u have a technical analysis strategy to write options, u can code and backtest.