Dear Srikanth,
In many companies, working long is considered as sign of loyalty towards the company or the boss. Do you have this kind of culture in your company? Overall how many persons work long in your company? Problem of long working hours, is it only in your department or across all the departments? What is the percentage of extra hours per week?
Why you are required to work extra? Have you done your workload analysis? What kind of primary and secondary skills are required? What is your error rate in the job? What kind of work takes maximum amount of time in your day?
How do you stay organised? Do you use all the features of your mobile phone, Calendar of MS Outlook, Contact list etc? How much time you spend in searching something per day? Do you maintain sufficient cross-references in your work?
Have you spoken with your boss? What does he say? How did you inform HR? Was it verbally or through e-mail?
There are so many questions associated with your post. Please provide us complete information. Any solution can be provided thereafter.
Thanks,
Dinesh V Divekar