Chief of Jamaat-e-Islami, Pakistan, Senator Sirajul Haq, has appealed the masses to offer Namaz-e-Istisqa, (Prayer for rain) tomorrow after Juma prayers. He urged the Ulema and Khatibs in villages, towns and cities all over the country to come out in the open for the special prayer and seek divine mercy in the form of showers as the dry spell had prolonged for many months.