Caretaker Minister for National Heritage and Culture Syed Jamal Shah has emphasized need to preserve cultural heritage sites of country.Talking to a private news channel, he said caretaker government is working to promote calligraphy in madaris to advocate peace, love and harmony in present society.He said caretaker government had taken revolutionary steps for promotion of art and culture with introducing various project including heritage channel, children contents on youth, cinema promotion and youth related programs.Source: Radio Pakistan