Hi Varun Yadav,
In order to use the N series VMs, you need to submit a request to enable these series for your subscription (if your subscription supports). Request a quota submission here for the VM available region.
For Image, choose the base operating system that you want for your VM. Microsoft’s Data Science Virtual Machine (DSVM) and NVIDIA CUDA Suit Standard Plan - x64 Gen1, NVIDIA GPU-Optimized PyTorch - x64 Gen2 etc., is recommended and we have many more GPU based images are available, as it comes packaged with common tools and libraries such as Tensorflow, Pytorch, CUDA, Anaconda, and much more. Click on Browse all images and disks to search for the DSVM and GPU based Images.
For Size, select the type of VM you want. In Azure, the GPU-enabled VMs fall under the N-Series.
Here, you can see the required Images of GPU and DSVM and search to see all images of GPU based and select required one.
It's getting Insufficient quota-family limit. Family vCPUs are insufficient to deploy these sizes with GPU Images of NC-Series.
Here the N-series quota is not available for most of the regions, check for the availability, it's going to change from time to time based on selected regions status.


Here, most of the NC and NC_Promo series were retired on September 6, 2023. where currently none of the remaining N-series VM size are available in any of the Zones (Zones 1,2 and 3).
https://learn.microsoft.com/en-us/azure/virtual-machines/sizes/gpu-accelerated/nc-series?tabs=sizebasic
If you have any further queries, please let us know we are glad to help you