Hello Aspirant

There are many external websites that will provide you with CSEET study material but the best material can be found on the official website of CSEET.

On the main link there are mock test available for practice

the link to the website is:

https://www.icsi.edu/cseet/

Also various paid training sessions are available on the given link:

https://www.icsi.edu/student/training/

Also there is a E-library available online : https://claonline.in/icsi/register.aspx

Lastly there is an E-learning course for which you can enroll:

https://elearning.icsi.in/per/g25/pub/1677/SelfServices/templates/icsi%20v703072017024157/icsi%20v7/Login%20Icsi%20Self%20service503072017024239.html

There are various youtube channel that will help you with the pattern.

I hope this helps

Regards!