I've found this RTX4050 laptop with i5 12450H from MSI:
MSI Thin GF63, Intel 12th Gen. i5-12450H, 40CM FHD 144Hz Gaming Laptop (8GB/512GB NVMe SSD/Windows 11 Home/Nvidia GeForce RTX4050, 6GB GDDR6/Black/1.86Kg), 12VE-080IN https://amzn.in/d/5GA82Fw
You may upgrade RAM after purchasing as this...