Int. from PPF, GPF
Money back or maturity amt. from LIC
Gift (I think up to 20,000/-)
Retirement/death gratuity
Leave salary (30/yr)
Scholarships for education
I also like to add the following:
Travelling Allowance
Savings bank interest upto Rs. 10,000/-
Gift from anyone upto Rs. 50,000/- (@Torkona: it is not 20k )
Commutation of Pension
VRS upto Rs 5 lacs
Awards or Rewards by Govt. / Govt. Recognized body