Pros
It's a huge company and so has well defined processes for everything - HR, Finance, Service Desk etc. Every employee service from filling tax to resigning process is well defined and automated. Infosys has huge number of clients and keeps adding new everyday. So many clients mean lot of technologies in varied environments - which is a heaven for learning. Infosys have quite a few big shot clients which means lot of cutting edge technologies. Infosys has a very string traing and knowledge mangement base so if you're willing enough to learn new and upcoming technologies you can do it here.
Cons
The working hour policy of 9.15 hours/day and policies to mark one down in annual salary reviews because of falling short of 9.15 hrs/day, not clearing internal certifications in time etc. The policy of 9.15 hours/day is so strictly followed that employees who fall short of that mark have to compensate by sacrificing their earned leaves. Sick leave is limited to 1 every quarter which is illogical. Too much workplace politics to deal with on a day to day basis and favouritism is very common amongst managers during annual appraisal process.