You can cook a curry in any pan but IMHO
Woks are NOT the best pan for cooking curry. Wrong metal and usually too thin.
They also take too much looking after. a few more reasons. blah blah blah. ;D ;D
If you pay attention to the Rick Stein series, he is using a 4 or 5mm thick Ally Karahi (Round Bottom)
You can pick these up in Asian Supermarkets and are identical to the one in the show.

I saw them today, Starting at 10 quid for a 22mm with lid. The only thing you have to watch with these,
is the handles get as hot as the pan and you can burn yourself if your distracted or not thinking. Ouch!

His paneer Jal Frezi I would cook in my 23mm (303) Ally omelette pan, BIR catering style.

Here's my demo vid I posted a couple of years ago, still the most accurate way to cook a BIR Jhal Frezi on the web.
https://vimeo.com/22149951Notice how beautifully battered and rounded my favourite curry pan is! ;D
cheers Chewy