How is the speed of Bsnl 4G network in Lucknow?

I usually do 1 year recharge of Jio sim of Rs 2545 but now they had hiked the prices to almost Rs 3599 which is quite unbearable for me. I am thinking to port from Jio to Bsnl as they have a yearly plan of Rs 2399 of 395 days validity with 2 GB/day + calls. Will it be a good choice?