There are 7 internet providers currently available in Lucknow including BSNL and Railwire, tikona is best for unlimited plans at very affordable price then you can consider Reliance or Sikka, also check list of Internet service providers in Lucknow.
Raliance broadband offers 4 unlimited plans starting from 1mbps speed at Rs 599 to 4mbps at Rs 1099. Thunder 899 plan offers 4mpbs speed upto 20GB at Rs 899 post speed switch to 1mbps, this plans is good for people looking for less usage at high speed.
Tikona broadband offers many flexible plans to choose from, it has unlimited plans with FUP limit starts from 2Mbps to 10Mbps pricing starts from Rs 675 to Rs 1250 per month and installation charges are Rs 750 and installation charges are waived off if you subscribe for 6 months or more.
Airtel offers unlimited plans starting at Rs799 to Rs2399 per month for fastest users with speed starts from 2mbps to 16mbps post all plans switch to 512kbps.
Sikka broaband is not very reliable and plans starts from 2Mbps to 50Mbps with limit of 5GB to 200GB pricing at Rs 499 to Rs 1999.