Headquartered not too far from the outskirts of London lies the office of an international humanitarian NGO that has assisted thousands affected by armed conflict, natural disasters, and extreme poverty across more than 54 countries.

The NGO, known as Khalsa Aid, now operates on five different continents and was founded by Malaysian-born Ravinder (Ravi) Singh in 1999.

Ravi, who was born in Johor Bahru, eventually grew up in India and the United Kingdom, where he established the organisation based on the core Sikh principle of “Sarbat da Bhalla”, which recognises the human race as...