sentences:  This largest, longest and costliest expedition will form the plot of a Hollywood movie.On joining Air-India in 1971, Kohli conceived and personally promoted ‘Trekking in the Himalayas’ all over the world by visiting over 50 countries and making over 1000 presentations which included world's most popular TV programmes, ‘To Tell the Truth’ and ‘David Frost Show’.On 3 December 1978, he flew over the South Pole.