Hi Md Sohag, thank you for leaving a question. If you have been caught and fined, you would face a hefty fine of $130, the same as the fine one would get if they do not give way to buses exiting bus stops in the Mandatory Give-Way to Buses Scheme. Rest assured, the fine does not come with any demerit points. Check this out for more details: https://www.motorist.sg/article/6/singapore-bus-lane-laws-and-fines