Help me choose a new phone?😁

Never really been a gadget geek, so I wish to buy a new phone in the next 2-3 months which I'll probably use for 5 more years atleast. My budget is 40k, can extend by 2-3k if needed, but definitely not more than that.

So my target features would be a good camera for when I travel. A good battery that won't drain quickly and a smooth processor that won't lag. Basic performance requirements basically. Gaming is not a priority. Screen size should be nice tho....

You guys have any suggestions?