Tamil Nadu chief minister J Jayalalithaa will campaign in Dr R K Nagar constituency in north Chennai on June 22. The AIADMK chief is the main candidate in the byelection scheduled to be held on June 27. She will address meetings in two place -Tiruvottiyur High Road Junction and at Ennore High Road Junction. Later, she will take the Ennore High Road -Manali Road route for campaign.