Questions regarding market data

[mithilpradhan]

Hi there,

I used to download data from the yahoo group bsense 2005 over a long time. Recently, I shifted to a paid vendor Viratech India who promised to deliver quality market data.

I have a question regarding the market data available on dtm. What is the source of the data? Is it yahoo finance?

Secondly, how reliable is the data in comparison to vendors like viratech?

This question has arised from curiosity and nothing else. Hence, would appreciate if you can reply so that I can take a better decision to subscribe.

Thanks
Mithil