Check the image below, this was taken few minutes before the expiry. Nifty was around 19150 and it was no where close to going below 19100, clearly anyone would avoid to buy Put order but looking at the depth I’m not sure whether my understanding is correct or whether there is an automated systems that place the order.
This was last week
https://preview.redd.it/ddsis3mgxxyb1.png?width=2280&format=png&auto=webp&s=688b275969394db16ac2cd05508bd55d21ddc0f3
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