What is the minimum qualification they are asking for?

The eligibility criteria differs every year during their selection process.The list below is the criteria for this year. The basic qualifications that remains constant are listed below, though these are the general qualifications that one requires to sit for the exam normally -
1. Only BE/B.Tech/ME/M.Tech (any discipline), and MCA/M.Sc (Computer Science/Electronics/Mathematics/Physics/Statistics/IT/Information Science) students who have graduated in 2018 are eligible. 
2. 60% marks and above in 10th, 12th and graduation (with no active backlogs).
3. One has to maintain a gap of at least 9 months from the date of appearing for a selection process with Infosys, before participating again.
4. Good communication ability.