Got a confirmation by JPN that Hindu (or Indian) parents NEED NOT use a/l (son of) or a/p (daughter of) when naming their children. So, for example, Mahaletchumi a/p Saravanakumar can be Mahaletchumi Saravanakumar. The below is a screenshot of message exchange between Sharmalan and official FB page of JPN.
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Thanks to Sharmalan for sharing this