Father: Died Dec 2010
Total Income in FY 2011-2012: Income from investments (deceased person's estate) - (FD, Mutual funds, Equity shares)
TDS deducted at source, will be claimed back in return ~ INR 20,000
Son: Sole Legal Heir
Income in FY 2011-2012: Income from investments (FD, Mutual funds, Equity shares)
TDS deducted at source, will be claimed back in return ~ INR 20,000
Question: Is it mandatory to file clubbed returns for FY 2011-2012? Or can I continue to file separate returns (like I did for FY 2010-2011), especially since I need to claim TDS refund for both myself and father?
Any other tips/comments will be greatly appreciated.

