The most convenient and cost effective option would be to buy a pair of 6.5 inch powered speakers. You can add a powered sub later to these.
I am personally using the same config, although my speakers are 5.25 inchers(but I have a 10 inch sub).
Since your budget is slightly limited, get 2 of these and buy a DAC along with it and you will be set. they sound great and fill a small room really well.
Mackie MR 624 :
https://www.amazon.in/Mackie-MR624-Active-Channel-Monitor/dp/B073WMVJBR
These monitors handily beat the JBL LSR 305 when it comes to vocal rendition and low end punch, JBL has a slight lead in the treble department but at the expense of sounding hollow(relative to Mackie, on its own merits the JBLs are one of the best sounding powered monitors out there).
Remember, you have to buy 2 of these, so the total expenditure would be 34k, Leaving you enough to buy a good DAC.
For the DAC part I would highly recommend this -
Soncoz LA-QXD1 :
https://www.amazon.in/SONCOZ-QXD1-Digital-Converters-Balanced/dp/B089KKKVM3/
This is an ESS SABRE chip based DAC, one of the best implementations i have seen yet, and comes with balanced outputs which you can use to connect the speakers to.
This combo cannot be beaten around the 50k mark. Yes its a tad over your budget but the DAC recommended here would pay for itself owing to its superior sound output, highly recommend you not to skimp on the DAC, which is often overlooked by folks, for a speaker to really come to life, you need an equally good source and DAC. Lemme know if you have any questions.