Bengaluru, May 19 -- Tata Consultancy Services Ltd's decision to award hikes of up to 6% to top performers should have sparked jubilation. Instead, revised compensation letters show changes that link work-from-office to monthly pay, and a salary structure that has left many employees confused about the impact on take-home pay.

According to some compensation letters reviewed by Mint and employees familiar with the changes, TCS has shifted work-from-office-linked variable pay from the performance bonus component to a monthly "performance pay" category tied to attendance and deployment metrics.

TCS's move comes at a time when there has been rising talk of working from home, especially after PM Narendra Modi's appeal to the country.

The co...