For the Hindu population residing in Karachi this weekend is a time to indulge in Diwali festivities. Illuminated houses, loud firecrackers, special treats and colorful rangoli's indicate the arrival of the new-year and marking the celebrations of Diwali. The Swami Narayan mandir in the heart of Karachi's old city area, resounded with the sound of bhajans and devotional melodies.