Hello Sobhagya,

The minimum qualifying marks this year for an ST candidate is around 15% in the qualifying examination and at least 11.25 marks to be shortlisted in the merit list.

Since you qualify for inclusion in the merit list, you have slight chances, because as per the previous year cutoff trends, there was no specific cutoff score for ST candidates in UILS Chandigarh, PURC Ludhiana and SSCPURC Hoshiarpur. 

All the Best!