The usage of the emblem is regulated and restricted under State Emblem of India (Prohibition of Improper Use) Act, 2005. No individual or private organisation is permitted to use the emblem for official correspondence.
So using emblem on "congress party" document in my opinion is illegal!No person can use the emblem or any imitation in a manner so as to create an impression that it is associated with or an official document of the Central Government or State Government, as the case may be, without permission of the appropriate government.
West Bengal poll dates 1st phase – 18 constituencies Polling days – April 4, 11 2nd phase – 56 constituencies Polling day – April 17 3rd phase – 62 constituencies Polling day – April 21 4th phase – 49 constituencies Polling day – April 25 5th phase – 53 constituencies Polling day – April 30 6th phase – 25 constituencies Polling day – May 5
Counting day – May 19