Renting a bike in Mumbai
 

Hi. Going to India only for 2 weeks with my girl. I want to rent a bike so we can see as much as we can in the short time. Where is the best place to rent a reliable/ affordable machine ? How much will it roughly cost?

I would not advise renting a bike in Mumbai if you have never riden in India before - it's kind of like being part of some crazed video game but you only have one life.... And of course city riding is the hardest level..
You could head down to Goa - lots of public transport options to get down there - and hire a bike there. Plenty of people hiring/selling bikes to tourists, just check the vehicle over well and Bobs your auntie.