: Superstar Rajinikanth plays a dual role as both the son (Arunachalam) and the father (Vedhachalam).
This is the most logical deduction: Search engines autofill or suggest "Tamilgun Arunachalam" because users are looking to download or watch the movie Arunachalam illegally for free.
: The protagonist must spend ₹300 million (30 crores) in 30 days under strict conditions—such as not owning any assets or donating to charity at the end—to inherit a fortune of ₹30 billion (3000 crores).
There is no verified celebrity or public figure named Tamilgun Arunachalam. It is almost certainly a pseudonym used by a torrent uploader or a meme page administrator.