The letter states: "The instructions (to not include Hegde's name in the list of invitees) may be brought to the notice of all departments in the State celebrating Tipu Jayanti".
BJP MP from Karnataka, Shobha Karandlaje, said Tipu Sultan was "anti-Kannada and anti-Hindu" and the state government should not celebrate this day, which is on November 10. "The invitation will be sent out to all central and state leaders, up to them to accept or reject".
When the Congress government in Karnataka chose to start celebrating the birth anniversary of 18th century ruler Tipu Sultan two years ago, it may not have anticipated the fallout of that decision.
However, the BJP and the RSS differ and regard Tipu Sultan as a tyrant monarch.
Hegde, who is with the BJP, is the MP from Uttara Kannada.
Siddaramaiah added that "It is being made into a political issue". He further added that the invitations would be sent to all the leaders in the Centre and State and it was their call to either accept or reject the invitation.
Hegde also shared a copy of the letter that his personal secretary wrote to the state's chief secretary, SC Khuntia, regarding his decision to stay away from the event that has been a polarising issue since it was first celebrated.
"As part of govt he shouldn't have written it".
The Karnataka government is set to celebrate the controversial Tipu Jayanti on November 10.
The state government's decision to go ahead with the celebrations, has witnessed widespread protests and violence, marring the celebrations during the last two years. Protocol demands that the names of all elected representatives be mentioned in the invitation cards but Mr. Ananth Kumar Hegde writing a letter stating that his name should not be mentioned in the cards "is an insult to the democratic system". However, the state government is all set to proceed with the event for the third year.