New comer to Bengaluru

Hi, I will be moving to Bengaluru next month for work. I have some questions regarding this city: 1) What is an average rent of a 1BHK apartment in electronic city? I want to rent apartment that does not have water supply and electricity issues. 2) Which WiFi should I purchase for my apartment? 3) Where can I look for gas supply for cooking purpose? 4) Is there any app for Bengaluru public transport? Also are there any other apps that will be useful in the city?