Ratan Tata, the iconic Indian business tycoon and branding genius, passed away at 86. His legacy offers lessons in marketing, innovation, and social responsibility.

Ahead of a state funeral, hundreds of people including corporate leaders, politicians and celebrities gathered in India's financial hub Mumbai to pay their last respects.

The funeral has taken place in Mumbai of Ratan Tata, the chairman of one of India’s biggest conglomerates, Tata Group, who died on Wednesday aged 86. Business leaders, politicians and celebrities were among thousands of people who paid their last respects at the centre where his body lay in state before being cremated.