If you want an authentic Indian aruval, it won't be easy. Antique dealers who sell Indian weapons might have one - this will be your best bet to find the specialised weapon version.
If you're happy with something like an aruval, even if not actually Indian, and are happy with the tool version, some Italian billhooks are a lot like some aruvals. E.g., https://www.amazon.com/Rinaldi-Large-Bergamo-Billhook-5-102N5/dp/B07D5K1PH8/ has a similar blade shape and a similar pommel hook to some types of aruval. Some aruvals in the movies are very modern in style, and a billhook machete https://www.machetespecialists.com/products/machetes/billhook/ might be OK.
For readers other than the OP: the aruval is an Indian billhook or billhook-sword: https://en.wikipedia.org/wiki/Arival