Dear aspirant !

Hope you are doing great ! No . You will not face any problem if you had compartment in your class 12th but yes at least you should have a aggregate percentage of 50percent in your +2 to get eligible for rrb ntpc ,keep this thing in mind as well ,but yes due to compartment ,no problem will be there at all

https://www.google.com/url?sa=t&source=web&rct=j&url=https://competition.careers360.com/exams/rrb-ntpc/amp&ved=2ahUKEwiVw8G-u8j2AhWBC94KHR1bAQQQFnoECD8QAQ&usg=AOvVaw2mXh8TwmtIIlR7dMu7wTMH .

Hope it helps you !

Thank you