The song 'Kal Ho Na Ho' played as Vistara's Goa-Bengaluru flight landed at its destination on Sunday, invoking nostalgia among crew and members a day before the carrier's time in the Indian aviation landscape was to come to an end. The full-service carrier Vistara, which is a 51:49 per cent joint venture between Tata Sons and Singapore Airlines, is all set to merge with Air India on November 12.