Have lived in both the cities.
Everything right from cost of living to savings to traffic to quality of life is better in hyderabad compared to bengaluru.
Salary wise also both are at par almost.
The only downside i felt was the lact of fresh vegitables in the hitech city, gachibowli area. Old hyderabad has fresh vegetables compared to the tech areas.
Just Dont trust any of those locals for movers and packers, only go with the official agarwal packers and movers, the local one's are all scammers, initially giving u low cost upfront options and then ask for ransom.
Landlords asks for only 2 months of deposits and mostly return all of it if you keep the flat same and do any repairs urself.
Overall hyd is the best. No overcharging ...
Only thing is that its way quieter than bengaluru, so u may find it a bit boring but there are different places to enjoy and spending evening too😀