Visit the official website: results.nios.ac.in . There will be a link that says "Check Result" and click on that. NIOS April result window will pop up. Enter your Enrolment Number and enter the Captcha. Click on "Submit" and 12th result will displayed on the screen. Along with other details shown on the result page, you will also find Subject wise Theory and Practical marks. So you can check your Practical marks from here. For step to step process, please read our article: https://school.careers360.com/articles/nios-result