No, kala namak and Himalayan salt are not the same.  Kala namak, also known as black salt, is a type of rock salt with a sulfurous smell and pungent taste. It is mined from the foothills of the Himalayas in India, Pakistan, and Nepal.  On the other hand, Himalayan pink salt comes from ancient sea beds found deep within the Himalayas with a light pinkish-gray color.  The salts have different mineral compositions; Himalayan pink salt contains more than 84 minerals, while kala namak has fewer minerals but higher quantities of iron sulfide, giving it its characteristic flavor.   They both offer health benefits such as improved digestion and better nutrition.