Hello Roshan,

It is a good question that Department of Pre University, Karnataka will follow CBSE syllabus or not??

Basically there will be no changes in 2nd PU BOARD syllabus because there is no need of it, as I studied under PU Board they have well furnished syllabus which includes NCERT questions in major topics by which the  thought process of a student can be developed for exams like JEE, NEET, K CET,COMEDk and etc.

Hope I have cleared your doubt.

There are no such news available online. Although its predicted that Karnataka Board will implement its own syllabus as per there will. The reductions or implementation everything will be dependent on the state educational ministry and the Department of Higher Education of the state of karnataka. So you may consider the CBSE syllabus if you wish to start your study but laterwise you should follow the official syllabus when it will be published by the Karnatak State Board.

I hope this answer helps. All the very best for your future endeavors!