KCET is one of the entrance exam through which a local candidate of Karnataka can get admission in different stream like Engineering, Architecture and Pharmacy in Government or private college of Karnataka.
But for getting admission in this, candidates must have passed with minimum 50% marks in the 2 nd PUC/12 th standard or equivalent exam to appear for the exam. Also, they must have Physics, Chemistry, Mathematics/ Biology as compulsory subjects in their secondary education.
As you have scored only 73 marks your rank must lies in the range of 5501 - 6000 ans your marks below 50% of the total marks ,So you have to more problems in getting admission because the minimum qualifying marks is about 50% . So I think you won't able to get admission in good college through this.