Income tax return file

From AY 2013-14 IT IS mandatory to file Income Tax Return electronically if the total income exceeds Rs. 5 lacs.

Yes, it mandatory to file income tax retuns online for those having TAXABLE income above 5L.
. Refer to the below links for ur reference

http://articles.economictimes.indiatimes.com/2013-05-24/news/39502317_1_tax-return-form-income-tax-department-form-26as

http://articles.economictimes.indiatimes.com/2013-05-24/news/39502317_1_tax-return-form-income-tax-department-form-26as

Regards,

Zim

From AY 2013-14 IT IS mandatory to file Income Tax Return electronically if the total income exceeds Rs. 5 lacs.

Besides all the above answers of (YES IT IS AMNDATORY TO FILE INCOME TAX ELECTRONICALLY IF INCOME EXCEEDS RS.5 LACS) to maintain a clear and consistent income tax file. EVEN if your income level is not at the figure mentioned and below the same, you should always file returns. There are instances of people filing Zero returns as well.