Tata Docomo and aircel giving free 100 MB internet data trial

Tata Docomo and aircel are giving free 100 MB internet data trial to activate them follow the steps
Aircel
To get free 100 MB internet data just dial
*121*0049#
You will get 100 MB free data
Only Aircel customers across few selected circles are eligible
Docomo
To get free 100 MB data just goto
http://tatadocomo.com/reload.aspx
And input your number ,enjoy the offer