Narayana Murthy's letter to the Infosys top brass

On Saturday, Infosys reappointed Narayana Murthy as executive chairman of the firm, two years after he retired in August 2011, having turned 65.

His return to the firm -- India's second-largest software outsourcer by revenue -- comes at a time when it is struggling with weak earnings and losing market share to rivals like Tata Consultancy Services and HCL Tech.

Here's his letter to the top brass of the company.

Narayana Murthy's letter to Infosys top brass