Salman Khan on the sets of 'Tubelight'.

The Salman Khan starrer film 'Tubelight' has been shot extensively in Manali and Ladakh. The crew shot in extremely harsh conditions for certain portions. Because of low oxygen in the high altitudes, many crew members fell sick and had to be sent back to Mumbai. To top it all, there were hardcore action sequences that demanded the actors to run a lot and climbing high terrains. Many stuntmen had breathing difficulties and needed oxygen masks.