Tata Motors has upgraded the Indigo CS to comply with Bharat IV emission norms. The petrol motor gets a tweak whereas a new DICOR engine has been introduced. The DICOR engine produces 70PS at 4000rpm and 140Nm at 1800-3000rpm. Along with the engine upgrade the Indigo CS (dubbed the e-Series) also gets a new grille, body colored rear view mirrors with indicators, two tone beige interiors, instrument cluster with chrome rings, Bluetooth connectivity with AUX and gradient climb assist (no this is not a high-end feature, this just cuts the AC when you are climbing). There is a price hike of Rs. 10,000/- over the BS III version.