Suggest me home theatre

sony 5.1ch home theatre
https://www.amazon.in/Sony-HT-S20R-Soundbar-Blu...

Sony rt3

Sony HT-IV300

Sony HT-IV300 is not good. i sold it

Which ever brand you buy please check it has hdmi 2.1 support in more than 1 ports with higher birate output.

Sony ht-s40r

Better go for stand alone avr and speakers, I had started off my Home theatre journey 8 years back when I Bought Yamaha home theatre, it was good to start with but those punny small satellite speaker are worthless in less than 2 years and I wanted more, so invested in a standalone AVR from Marantz and standalone Speakers from Dali, whole setup is very costly but well worth it, so IMO if you have a budget constraint go for avr and 2 front speakers and than u can upgrade whenever u have spare funds, with HTIB u will be stuck and will not be able to upgrade individual speaker.

If you can wait till 2 weeks before Diwali should get clearance deals and the 11k HT will cost 8.5k

If savings is not the criteria then you would be an “anti-desidimer” LOL.

You can buy any just walk in a Reliance Digital store take a demo of your and do a price match with Amazon on spot if you are not in a lockdown zone.

Mind you bigger system in a bigger room is also a
Headache. Like I had to put sound absorbing foam sheets behind painting cavity to cut echo.