Why this cooking pot not working on my Induction? I just bought this Induction compatible Kadai (kind of wok) but surprised to know it's not working.

When I place it over my Induction cooker, it doesn't show any error (generally if a pot is not compatible or not placed properly shows error E0 in red text with a continuous beeping sound of delay 1-2 seconds) but heating starts and stops for 1 second alternatively. Also when it starts and stops next second, the display board of temperature blinks. For example, if the reading is 1000, it will show 1000 then next second it blinks with a cracking/glitch sound and it keeps on like that. It seems like it wants to heat but something is not working.

Here is the image of Prestige induction I'm using:



One thing I noticed with this wok is the base is slightly concave from bottom. I mean when you place a straight scale on base, it touches the edges only, not the central part. Same when I place it on induction. But outer ring touches it completely.

Can this concave thing be the reason for its not working?

Another possible problem can be because of size? I measured the following area of my wok:



It almost superimposes the circular mark made on Induction stove. If it is slightly bigger (which I may have not noticed), can this be the reason for it not working?

EDIT: I noticed a strange thing today. I ordered another Wok (bit smaller) today from a reputed brand in India. Sadly, same problem happened with it. But with this wok, I tried to boil water. And once water started heating (due to partial working it got heated), the error which wanted to show disappeared. Why would it happen? And once it is cold, the problem started again.

Here is the image of the same:



Here are two pots that work without any problem:
(Their base is plain/flat). Not patterns like the ones on Wok bottoms)

One of the pots' base is concave but still works. The other one is very flat.
An induction pan must be flat to work properly, if it is bowed up in the middle even if it does work you aren't going to have the right efficiency. Many pans say induction ready, some say it because they are made of steel or iron, but not all of them have been tested so you won't always know before you try it.