The other company is Mumbai GoldCab run by Fulora foundation. It consists of a fleet of Esteems, Indigos, Indigo Marinas and Versas. Plans are also on to add Lancers, Corollas, Citys to the fleet. These taxis currently are red and yellow in colour as they are draped in ads of a popular radio station.
Meru taxis are green Esteems with a "Taxi" board on the roof and "Meru" stickers above the rear wheel.
Pics sourced from Meru official site and wordpress.com