Hello Rahul,
TEF810X is not sensor, but this is radar transceiver (also known as radar front-end). Please look at the link below, where NXP provides RDK-S32R274. This platform will be available in July and this will be compatible with Radar SDK.
S32R27 Automotive Radar Reference Design Kit | NXP
About Radar SDK, this is distributed with S32 Design Studio. Please see the S32DS download link.
S32 Design Studio IDE for Power Architecture based MCUs | NXP
As soon as S32DS is installed, you can install latest update which provides the newest version of Radar SDK.
https://community.nxp.com/docs/DOC-343018
All Radar SDK documentation and examples are available as soon as you install S32DS and the update above. Documentation can be found in S32DS installation folder.
Please let me know, if you have any other questions.
Regards,
Martin