Hi Harshal,
Welcome to Microsoft Community Forums and thank you for choosing Windows 8 as your operating system.
I see that you want to know how to connect the laptop to a Smart TV, through Wi-Fi.
Let us work together to resolve this issue.
However, please answer these questions so that we can understand the issue better.
1. Is the TV Digital Living Network Alliance (DLNA) enabled?
2. What is the make and model of the TV and the laptop?
3. Are both the devices connected to the modem?
4. Do you have Windows Media Center installed on the computer?
5. Are you able to connect the laptop and the TV using an HDMI cable?
Please get back to us with the answers so that we can diagnose the issue correctly.
Reference link:
Note: refer to the steps given by Support Engineer Vikrant Yadav.
Disclaimer: Using Third Party Software, including hardware drivers can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the use of Third Party Software can be solved. Using Third Party Software is at your own risk.
Please get back to us with the results.
If you have any further questions regarding Windows operating systems, contact us on this forum. We are happy to assist.