Hi@Ganesh_Pawar
I am sorry that the installation problem has troubled you, I have summarized my installation process, you can refer to it.
1.download highlight parts.

2.open S32 DS V3.5 ->Help->Install New Software,




After the installation is complete, restart S32 DS V3.5, and you should be able to use it.
If you still have problems related to install this software, please contact me in time, and I will help you solve them in time.