i also faced the same question when i shifted to guwahati last summer in 2015. i hunted down all the service providers and even hunted down the users of various isps and asked their review. originally i was using bsnl wimax in my earier city, but when i moved to guwahati , i found that it was impossible to get a wimax connection in guwahati as whenever i visited bsnl panbazar office or bsnl diapur exchange or even panjabari sde office, they all had one answer ready and that was, no wimax device was available. i waited 6 months from august 2015 to january 2016 but bsnl still did not have wimax device. however i did get cal from someone in bsnl office aksing me 5 k for providing a bsnl device. it was all clear to me by then. now i had to decide if i wanted to pay the bribe and get the connectio which is only 512 kbps and risk giving more bribe as and when i needed help from bsnl. hence i dropped the idea and started looking for private providers. i needed a minimu 1 mbps line within 1 k and unlimited usage. i shortlisted railwire, catla, sity, rajdhani , amtron and mnet. i had chat with the users and found that mnet and railwire users were the most satisfied. hence i called up both mnet and railwire for an installation. the only bar i has was , who ever could instal it first , i would go for it. railwire waa the first to visit and but they delayed by giving girlfriend issue of the technician, lol. the next day mnet visited and within 1 hour my 1 mbps line was up and running. though railwire would have costed me rs 2000 nly for setup, i did not go for it as i was sceptical about the after sales service vis a vis the girlfriend problem of the technician. mnet costed me 6600 installation and 200 extra as comission for installation( though off the official records) but the best thing is that mnet provides 1 mnps @ rs999 every inch of a second, always. so from my past experience with bsnl and others , i think mnet is the best as on date.