Started using nextra in feb 2017 after shifting over from MTNL broadband.
the review is based on 4 months of usage at i.p extension, patparganj, east delhi.
plan - fibre bolt 10( 10 mbps speed upto 50 GB the 512 kbps
internet speed is reliable and consistent with rare disconnection( 2 in last 4 months). internet speed most varies from 8-10 mbps . the customer support/service is quick to answer and rectify the issue.
cons-
higher priced and less data as compared to other competitors in the locality( excitel/spectranet/DEN)
go for it if you need a more reliable and consistent connection.