Hello, 

The cutoff rank for sc category student to get into iiit Allahabad from previous years is as follows (for information technology) :

2017:

Opening rank-430

Closing rank-1958

2016:

Opening rank-235

Closing rank-3957

For more chtoff trends please go through the following link 

https://engineering-careers360-com.cdn.ampproject.org/v/s/engineering.careers360.com/articles/jee-main-cutoff-for-iiit-allahabad/amp?amp_js_v=a2&amp_gsa=1&usqp=mq331AQECAFYAQ%3D%3D#aoh=15449415189355&csi=1&referrer=https%3A%2F%2Fwww.google.com&amp_tf=From%20%251%24s&ampshare=https%3A%2F%2Fengineering.careers360.com%2Farticles%2Fjee-main-cutoff-for-iiit-allahabad

Hope this helps....