hi,

see based on wbjee score you can either take admission to engineering courses or pharmacy course. the eligibility criteria for engineering admission is candidates must have passed 10+2 exam from a recognized education board in regular mode of education, with physics and mathematics as a mandatory subject with taking chemistry/ biology/ biotechnology / computer science as compulsory subject by securing individual passed marks in theory and  practical as well. must secure atleast of 45% score in physics and mathematics and any of the additional subject. for reserve category students marks criteria is 40%.

since you are not a regular student in 12th course, you are not eligible to apply. I suggest you to apply for jee main or other engineering exam test held by makaut, IEM, techno india to secure admission in engineering.