Nakhoda masjid, the grand mosque of Kolkata is seen in decoration on the occasion of Ramadan , in Kolkata , India , on 31 March 2023 . Ramadan is the ninth month of Islamic calendar and is observed as month of fasting and prayer . the annual observance of Ramadan is regarded as one of the Five Pillars of Islam. (Photo by Debarchan Chatterjee/NurPhoto) (Photo by Debarchan Chatterjee / NurPhoto / NurPhoto via AFP)