Trust relating query

I think its 5 yrs /articles/taxation-of-charitable-trust-20952.asp

What about this? When is it applicable? 

"

CBDT

[Refer Notification No. 24/2014 dated 01.04.2014]

CBDT has vide NOTIFICATION NO. 24/2014, Dated: April 1, 2014 amended the rule 12 of Income Tax Rules, 1962 and provided that notice under clause (a) of sub-section (2) of section 11 of the Act,

- shall be furnished  electronically in form No. 10 w.e.f. Assessment year 2014-15 before expiry of time allowed under section 139(1).

- Notice Under Section 11(2)(a) is required to be given by trusts if  a trust accumulates its Income and do not want it to be included in the total income of the previous year then it have to specify, by notice in writing given to the Assessing Officer in the prescribed manner, the purpose for which the income is being accumulated or set apart and the period for which the income is to be accumulated or set apart, which shall in no case exceed ten years."

https://www.incometaxindia.gov.in/pages/acts/finance-acts.aspx

https://www.incometaxindia.gov.in/_layouts/15/dit/Pages/viewer.aspx?grp=Act&cname=CMSID&cval=102120000000040760&k=&IsDlg=0

Thanks, Poornima! 

Since the above is applicable from 1-4-2016, what (how many years) is applicable for AY 2015-16? 

https://www.incometaxindia.gov.in/_layouts/15/dit/Pages/viewer.aspx?grp=Act&cname=CMSID&cval=102120000000040940&k=&IsDlg=0

Provided further that in respect of any income accumulated or set apart on or after the 1st day of April, 2001, the provisions of this sub-section shall have effect as if for the words "ten years" at both the places where they occur, the words "five years" had been substituted.

Thanks a ton!  Totally saved a lot of my time :)