Ola, the SoftBank-backed rival to Uber in India, has strengthened its position after landing the support of two of India's most seasoned and influential business figures. The company, which raised $400 million in fresh investment this April, welcomed an undisclosed investment from Ratan Tata - one of India's most successful businessmen, and Chairman Emeritus of Tata Sons - last week, and today it revealed that Arun Sarin, formerly CEO of Vodafone, is its new independent director.