gary4gar
GaurishSharma.com
ADSL,VDSL are different modes of the underlying technology DSL.It's unlikely that upload/download ratio will be 1:1. Download rate is usually higher than upload rates. That's why it's called an ADSL connection, Asymmetric Digital Subscriber Line.
*en.wikipedia.org/wiki/Adsl
Infact one could Switch from One to mode to other very easily.
Also there can be mutiple modes running on a single DSLAM at your exchange, which all depends on speed policy
which means, you could be using ADSL & your friend could be using SDSL
At present BSNL is capable of providing speeds upto24mbps(down) & 8mbps(up).
So upload & download speed ratio depends on different Plans
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