Hi Malini,
First of all, make sure you have the organization structure with you. Take positions stream-wise like Sales and Marketing, HR, Technical Development, Finance (typical in an IT scenario). Line out responsibilities in front of each role. Create a competency matrix - like soft skills and role-based technical skills. Map them along with the respective Project Manager for individual employees. Tell them where they stand and what is expected out of them. Show them hierarchy and ask them where they want to reach (ask about career goals, interests, and abilities). Ask them what is required to reach there from the organization. Based on their expectations and capabilities, draw a career growth plan for individuals. Please remember it is not an easy task, very time-consuming, and brainstorming. It has to be evaluated very patiently, along with respective heads. Do let me know if any clarification is required.
Regards,
Swapna