@Doremonn - I'd highly recommend Onkyo HT-S7705 for the ground floor. Hard pressed to find anything else with so many features. Or you can consider Onkyo HT-S5700 too.
For the first floor, if budget is a constrain then check out Bluetooth speakers or sounddocks. The top tier ones sound very good and are 100% wireless in that they can be carried anywhere and also run for hours on battery. Also, the sounddocks will have radio stations and with apps on smartphones and tablets you can pretty much stream all the free music you want.
I'm not sure you would need a Blu-ray player unless you have a ton of Blu-ray discs. On that front I'm a huge fan of PS3/PS4, it will play Blu-ray media, gaming and works very well as a media server too.
NAS like @haisaikat said don't bother. You can simply connect an external HDD to a smart router or use an old PC with an internal HDD of 3TB or 4TB connected to the router and you are all set for streaming all over the home.
Depending on your content requirements do consider adding in a Roku. You will need to spend on a VPN service monthly and also pay for the likes of Netflix, but hands down Roku is the best for streaming content and in terms of the channels it offers. I believe Kodi too works on that front, but I've never used it... but either a Roku or a HTPC with Kodi will offer a lot of freemium and paid content and will beat just about all cable and satellite TV services in India.
For the first floor, if budget is a constrain then check out Bluetooth speakers or sounddocks. The top tier ones sound very good and are 100% wireless in that they can be carried anywhere and also run for hours on battery. Also, the sounddocks will have radio stations and with apps on smartphones and tablets you can pretty much stream all the free music you want.
I'm not sure you would need a Blu-ray player unless you have a ton of Blu-ray discs. On that front I'm a huge fan of PS3/PS4, it will play Blu-ray media, gaming and works very well as a media server too.
NAS like @haisaikat said don't bother. You can simply connect an external HDD to a smart router or use an old PC with an internal HDD of 3TB or 4TB connected to the router and you are all set for streaming all over the home.
Depending on your content requirements do consider adding in a Roku. You will need to spend on a VPN service monthly and also pay for the likes of Netflix, but hands down Roku is the best for streaming content and in terms of the channels it offers. I believe Kodi too works on that front, but I've never used it... but either a Roku or a HTPC with Kodi will offer a lot of freemium and paid content and will beat just about all cable and satellite TV services in India.