That motherboard paired with the processor is not what I would go for. Either upgrade to a better processor which can make use of the motherboard's capabilities (like 7800X3D) or downgrade the motherboard. Remember Ryzen 7600 is a 6 core 65W TDP processor, you don't need that solid of a VRM setup for just that. But looking at the budget and since OP wants to game on a 4k monitor (you forgot to include it in your list lol) I compiled a build list
https://pcpricetracker.in/b/s/44982c4b-c2ca-4e4e-b22e-601cf8c2f836
Some reasoning behind some parts-
CPU - For 4k gaming you don't need a really high end processor, 7600 comes at just the perfect choice for this.
Mobo - Solid balance between performance and budget without giving away too many features.
PSU - 850W is the recommended PSU limit for a PC with RTX 5080 but since it only consumes 350-360W you have a good leeway of power left from the PSU. In fact a 750W PSU will work fine but might as well go spend a bit more on 850W and be safe.
Cabinet - I just searched for a Mesh cabinet that looked cool while not being too cheap on the quality, You can get whichever cabinet you like as long as it can fit the RTX card.
RAM - Since you will be gaming at 4K you can possibly get away with installing worse performing sticks like 5600mhz CL46 (because GPU will be the bottleneck at 4K) but the price difference is a mere 600rs for one stick so didn't made sense to cheap out.
SSD - Looked for a balance between budget and performance. You can get any Gen4 SSD with any capacity as you desire. It doesn't matter too much, not anymore.
Monitor - It is a beast of a monitor for being an IPS 4k 144hz monitor while being 28 inches only. 4K in this size must mean very sharp display (I don't own a 4k so can't say from personal experience)
Here is the Rtings review of it
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