Sify is the worst. I have taken the connection for 20 day. By this time I had to log 5 complain. And for each complain they take minimum 2 days to correct.
for last 5 days it is not working. And if I call the customer care, they always tell the crap like it will be solved by today evening. But nothing happens at all.

If you take sify you wont get connectivity for more that 10 days in a month.
If I knew this earlier I would have gone to cyber cafe whenever i require rather that taking the crap Sify connection.