In October 1969, Neil Armstrong and his fellow Apollo 11 astronauts touched down at Santa Cruz Airport in what was then known as Bombay, India, during their world tour after the first moon landing.

Among the thousands waiting at the airport to greet them was a young Sudhir Pai, who had the good fortune to shake hands with the first person to walk on the moon.

“For three days I did not wash my hand — it had touched the hand of a person who had actually stepped on the moon!” exclaims Pai, executive vice president of Acteon’s data and robotics division.