I brought docomo GSM sim as it give cheapest data packs . The packs are cheap but the speed of internet is soo poor.
Vodafone 3g gives 8Mbps whereas Docomo just reaches the mark of 2Mbps not more than that.
Useless 3g Docomo try to improve the speed you are insulting it by saying it 3g also there are several speed drops everytime I contacted customercare for that but nothing came out of it customer care just gabe an advice that reset the config and restart the phone but no solution came out.
Its ok for browsing purpose but the wort thing is that docomo give 2g in Mumbai circle no 3g so the problem is that 3g acts like 2g so just even imagine that how 2g will work. & my college being in mumbai I have to travel daily and this problem happened everytime so the last option for me was to port the sim so Now I ported the sim to Vodafone . its 3g works like buttery smooth and speed is at the mark of 7Mbps!