I suggest that you consider the
Kali Audio LP-UNF. They are about 33K in India, sound really good, are stereo (and not a one-box solution), have Bluetooth and USB-C input, and both balanced and unbalanced inputs.
The new
Adam Audio D3Vs have just been announced and are not available in India yet, think, but they seem to be really good. They should also be coming in the same general price range when they are available. Similar connectivity but no Bluetooth. I know you wanted something with BT, but I'm mentioning this, because this is likely to be a very good unit for the money. (In any case, if you're using the speaker at home, the best quality input you could give these would be USB-C, assuming no other "equipment" other than a smartphone/tablet/laptop.)
Both these are quite compact, and will keep for a while. Even if you get a bigger setup later, these could go into the bedroom or study.
Neither of these are the conventional one-box solutions, so you'll get real stereo, and far better bang for the buck, IMHO. I'm also assuming that you'll be plugging the speaker into an outlet, and don't need a built-in battery. If you need a battery powered speaker, both these won't work for your use-case.