Digital Signature Certificate made mandatory w.e.f 1st July

there's some error with the link..

Partnership firms, individuals and Hindu Undivided Family (HUFs) subjected to mandatory tax audits will now be required to file their income-tax (IT) returns only electronically and that too under digital signature. This regime would be applicable for assessment years 2011-12 (financial year 2010-11) and subsequent years, the Central Board of Direct Taxes (CBDT) has said vide its Notification No. 37/2011 [F. No. 149/68/2011-So (Tpl)], Dated 1-7-2011

Firm or individual/HUF covered under section 44AB are mandatorily required to file ITR-5 or ITR-4 electronically using digital signature

Income-Tax (Sixth Amendment) Rules, 2011 – Amendment in Rule 12

Notification No. 37/2011 [F. No. 149/68/2011-So (Tpl)], Dated 1-7-2011

In exercise of the powers conferred by section 295, read with section 139 of the Income-tax Act, 1961 (43 of 1961), the Central Board of Direct Taxes hereby makes the following rules further to amend the Income-tax Rules, 1962, namely :—

1. (1) These rules may be called the Income-tax (Sixth Amendment) Rules, 2011.

(2) They shall come into force from the date of its publication in the Official Gazette.

2. In the Income-tax Rules, 1962 in rule 12, in sub-rule (3), in the proviso, for clauses (a) and (aa) the following clause shall be substituted, namely :—

“(a)  a firm required to furnish the return in Form ITR-5 or an individual or Hindu Undivided Family (HUF) required to furnish the return in Form ITR-4 and to whom provisions of section 44AB are applicable, shall furnish the return for assessment year 2011-12 and subsequent assessment years in the manner specified in clause (ii);”

i hope you will find it useful

very useful indeed..