History:

Harilal: This surnames spread likely followed a typical South Asian pattern. It probably changed slightly in spelling and pronunciation over time, depending on where people lived and how they spoke. People probably moved voluntarily, maybe for jobs or to be near family, rather than because of things like wars or famine. These moves were likely short distances, leading to groups of people with this surname living near each other. More detailed information would need more digging into historical records and family trees.

Description:

Harilal: This surname likely links to Indias Vishnu-devotee communities, like the Vaishnavas. The "Hari" part points to Vishnu, a major Hindu god also known as Hari.

Harilals surname offers some neat twists. We could shorten it to Hari, a simple and common change. Or, we could use just Lal, focusing on the last part. Alternatively, a son might use something like "Harilals son" to show family ties. The best choice depends on the situation and personal preference.