abhishek@hp:~$ apt --installed list | grep "nvidia"

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

nvidia-352/xenial,now 361.42-0ubuntu2 amd64 [installed]
nvidia-361/xenial,now 361.42-0ubuntu2 amd64 [installed,automatic]
nvidia-opencl-icd-361/xenial,now 361.42-0ubuntu2 amd64 [installed,automatic]
nvidia-prime/xenial,now 0.8.2 amd64 [installed]
nvidia-settings/xenial,now 361.42-0ubuntu1 amd64 [installed,automatic]
abhishek@hp:~$