i got less marks in bio(PCMB)...bcoz of that bio became optional..am i eligible for neet 2k18

Hey Rik!

As long as you have studied Physics, Chemistry and Biology (all with practicals) along with English in both Classes 11 and 12 in two continuous years as regular student, and secure 50% marks (40% for reserved categories) on aggregate in Physics, Chemistry and Biology while also passing in English in your Class 12 final exam, you are totally eligible. It does not matter if Biology appears as elective/optional in your marksheet as long as you have studied it for two years and secured the required marks.

Hope this helps! All the best!