Friends ,
I have come across a real time vendor Neotrade Analytics Pvt Ltd. is an authorized real-time data vendor of National Stock Exchange (NSE) and Bombay Stock Exchange (BSE). It provides millisecond tick by tick data updates on various charting platforms and programming languages .YES I checked their real time feed with a trial version it works excellent n YES to my surprise with their real time feed I opened 10 charts simultaneously in real time for NSE F n O and all the charts were working excellent in Metastock programme and hence my search ends here for a real time data vendor for the markets .