Suggest stock data source

Kindly suggest where I can get accurate and up-to-date data including stats such as P/E ratio, book value etc.

I'm subscribed to Dalal Street magazine and Business Line newspaper and visit sites like moneycontrol and equitymaster but the data in all these does not match and sometimes the difference is substantial.

It would be great if the data was available sector wise or in excel sheet as in Dalal street databank (which is unfortunately updated only fortnightly).

Thanks.