Tata Docomo I am using this network till 2012. I am living in Chandigarh & its network is good in here.They released interesting offer packs like:- Rs18 300mb 3g data etc. They also provide 250rs pack which provide 1gb 3g data+222rs but this pack is now changed.
This network charges very low cost for calling.
Its Network is Good in Chandigarh.
They do not charge for using internet in roaming. but other network charges for it.
Technically I am saying it is a good Mobile Operator and I recommended this network.JUST TRY ONCE