Most important topic for pucet.
PUCET is conducted by Punjab University Chandigarh. If you have PCM in your paper 60 questions of each subject like physics, chemistry and maths i.e total 240 questions. The most important topic is - for maths 3d geometry,2d geometry, algebra, for physics laws of motion, power and energy, unit and measurement and for chemistry chemical bonding & molecular formula,s,p block element chemistry, the structure of the atom.I suggest go through previous year paper and solved the last five-year paper.
All the best