Gautam, the top 20 percentile cutoff marks tends to vary every year depending on the question paper level and relative performance of the candidates. Although you can get a rough idea what the cutoff this year would be based on previous years' data.

For general category students, the top 20 percentile cutoff marks for 2018 for NIOS board was 337/500. For other categories, the cutoff were as follows:

• OBC-NCL: 321
• SC: 318
• ST: 326
• PwD: 318

Although in 2019, NIOS didn't send the top 20 percentile data to the conducting authority. So the official data for 2019 for NIOS board is not available. In such case, you need to get a certificate from your board stating that you lie in the top 20 percentile.

Else, the top 20 percentile cutoff marks for CBSE board is used. In 2019, the category wise top 20 percentile cutoff marks for CBSE board were as below:

• General: 432
• OBC-NCL: 424
• SC: 410
• ST: 390
• PwD: 390

You can visit the following link for Board wise top 20 percentile cutoff marks available on the official website: https://josaa.nic.in/webinfocms/Handler/FileHandler.ashx?i=File&ii=162&iii=Y