I’d mainly suggest the Poco M6 Pro 5G/Redmi 12 5G (they’re both extremely similar). They have a Snapdragon 4 Gen 2 but the software may not be of your liking. It’s a really great value for it’s cheap price though. Their 6GB/128GB variants cost around 13k. Other honorable mentions (that cost a little bit more):
Moto G73 - Costs 17k for the 8GB/128GB model. It has a Dimensity 930, which is pretty good performance for the price. It has very nice cameras for the price and also has a stock-ish Android UI called MyUX. It is probably the closest phone to meet your expectations.
Samsung Galaxy M34/F34 (F34 is a complete rebadge of the M34) - Costs 19k for the 6GB/128GB model. It has a Exynos 1280, which isn’t all that bad. It’s marginally faster than the Snapdragon 695, which is available in more expensive phones. Exynos itself doesn’t mean the phone is all bad. The display is also top notch, a SAMOLED 120Hz display. The cameras are also pretty good. The long term software support is basically unbeatable by any other manufacturer selling phones in the same price segment. It will get 4 years of major Android updates and 5 years of security patches. Only big con is the exclusion of a charger in box. You have to purchase it separately. A 25W Samsung original charger costs around 1000 rupees in local markets. They sell for way much more online, which is almost a scam.
POCO X5 Pro - Costs 20k for the 6GB/128GB model. If you want a well rounded overall great phone, this is it. It has a Snapdragon 778G, which is pretty much the most performance you can get for the price. It has a AMOLED 120Hz display, a 108MP main sensor, 67W fast charger and possibly the best custom ROM support out of all of these phones since this is a very popular phone and has a Snapdragon SoC. The only real con is that there’s no SD card slot, if you mind about that.
I’ll be happy to mention other options if you tell me what your needs are. I recently bought myself a new phone myself very recently, so most of my research should still be up-to-date.