A long march through India: Rahul Gandhi’s bid to revive Congress Party

As India celebrates Republic Day, 52-year-old Rahul Gandhi, heir to the Nehru-Gandhi dynasty, is due to complete a march of more than 3,500 kilometres across India next week. His aim is to put the opposition Congress Party back on the political map after a string of scandals and political defeats. On his radar is the BJP, India’s ruling Hindu nationalist party, led by Prime Minister Narendra Modi, who has been in power since 2014. Our correspondents report.