hi,
most dependable is NSE bhav copy, updated at about 5:00 PM on each trading day. next best source is yahoo groups BSE-NSE. this data is also free. the fields of information vary slightly, but metastock compatible.
any TA program may make it compatible with either or both of the above sources by user selection or with standard metastock format. for conversion of NSE bhav copy to metastock format, we have free converters available at the software section.
for intraday data, on a one time basis, one can use the coolworks just posted in the software section.
if anybody is aware of a free & live intraday data source ( say 1 Min or 5 Min), please post it here for the benefit of all.
murthymsr