Shabbir had also filed a police complaint against the anonymous caller.
According to a statement issued today by Shabbir, he received the call at 5.42 PM last evening from a landline.
The caller used abusive language while threatening to kill him, the Congress leader said.
"Being the Leader of Opposition in Legislative Council, I have been criticising the TRS government and the Chief Minister K Chandrashekar Rao and his policies...I've been receiving these types of threatening calls quite often. Today's call was quite serious in nature and therefore I am lodging this complaint," Shabbir Ali said in his statement to Jubilee Hills Police last night.