Chandrababu became serious over the issue of Telugu Desam Party (TDP) activists blocking the convoy of Bharatiya Janata Party (BJP) national president Amit Shah, at Alipiri in Tirupati this morning. They had tried to attack the vehicles. Warning his party activists against violent activities, Chandrababu said that such actions will invite strict action in future. He said that any activity that brings dishonour or will defame the party should be avoided. The protests should be peaceful and should be enlightening to the masses, he added.