Trending @Infosys; Specialist Programmer Competency Level Change

Hey, Can Anyone Tell Me How And When We Can Expect A Progression To L2 And L3 In STG Specialist Programmer Track. Also What Are The Incentives Given In Terms Of Salary Hike. I Came To Know That L2 CTC Is Between 14-16LPA And L3 Goes Above 20. Is This True?