Complex sentence: Formerly known as Varanasi Airport, it was officially renamed after Lal Bahadur Shastri, the 2nd Prime Minister of India, in October 2005.It's 21st busiest airport in India in terms of passenger movement in year 2016-17.
Split into simpler sentences: Formerly known as Varanasi Airport, it was officially renamed after Lal Bahadur Shastri, the 2nd Prime Minister of India, in October 2005. It is India's 21st busiest airport in terms of passenger movement in year 2016-17.