The 133rd birth anniversary of the Poet of the East Dr Allama Mohammad Iqbal is being observed today (Tuesday) across the country with traditional zeal and fervour. Public holiday has been announced throughout the country to mark the day. The speakers paid glowing tributes to Iqbal while TV channels telecast special programmes on his life and works. National flags are hoisted on all principal government buildings. Exhibitions of books and relics have been held at Iqbal Museum Lahore, National Museum Karachi and Iqbal Manzil Sialkot. Meanwhile, change of guards ceremony was held today here at the Mausoleum of Allama Iqbal. At the Mazar of the poet laureate, guards of Pakistan Rangers assumed the duty. The Chief Guest laid the wreath of flowers on the Mazar and offered 'Fateha. He also noted his expressions in the book on this occasion.