Place to sit and work in Bangalore?

Are there any places in Bangalore where I can go and work with charging ports ? I have tried libraries but those are too hot and no charging ports. AC is preferable but it's optional at the place. Don't tell me about booking co-working spaces, they are more like a cage in the price of 2BHK apartment rent. No to startbucks as well. If possible suggest places near indiranagar.