Entry level point and shoot camera market is almost dead. Most likely the ones available in your budget are at least 2-3yrs old cameras and would be priced higher.
Are you sure you want to buy one of these? BTW, WX220 is more than 4yrs old.
If you have any camera - dedicated or mobile phone camera, you can use that.
If you don't have one or the one you have isn't good enough for you, you can buy one. Your budget determines what you can buy. If 10-15k is what you can afford and you're in need of a camera, you gotta go with what's available.
Yes, dedicated camera is better in many front. But unfortunately today there are not as many as choices as there was few years before.
Cheapest camera with manual controls will most likely cost above 15k. I think Nikon B500 is the cheapest you can find right now, if you're interested check if they're giving rechargeable AA batteries. If not you have to shell out even more for that and for quick charger as well.
See if you can get SX620 under 15k.
Entry level DSLR costs about 25k. If there is any offer/deal, you may even get it for about 21-22k.
If you don't like bulky camera, then SX620 is a decent one and you can pick one in your budget from Paytm.
IXUS 285 is okay, but slow lens.
Don't go by just one review and you're comparing two cameras released two years apart. Reviewers generally compare things within the segment/price bracket released in the same year (and their predecessor). In fact, you won't find huge difference in IQ among these cameras. Check sample images online from reviewers, from users (flicker, 500px...).
With SX620 you get lot more features than WX220.