Mumbai: Actress Kalki Koechlin at the launch of "United by Half "campaign in Mumbai, on Feb 10, 2017. (Photo: IANS)moreMumbai: Actress Kalki Koechlin and Gul Panag at the launch of "United by Half "campaign in Mumbai, on Feb 10, 2017. (Photo: IANS)moreMumbai: Actress Kalki Koechlin at the launch of "United by Half "campaign in Mumbai, on Feb 10, 2017. (Photo: IANS)moreMumbai: Actress Kalki Koechlin at the launch of "United by Half "campaign in Mumbai, on Feb 10, 2017. (Photo: IANS)moreMumbai: Actress Kalki Koechlin at the launch of "United by Half "campaign in Mumbai, on Feb 10, 2017. (Photo: IANS)more