Moulana Mufti Khaleel Ahmed announced that Thursday would be the first day of fasting month.
In Pakistan, the announcement with regard to the sighting of Ramazan Moon (Crescent) was made by the Central Ruet-e-Hilal Committee Chairman Mufti Munibur Rehman in a Press Conference in Karachi.
A spokesperson of Delhi's Jama Masjid said the moon was sighted.
This year, the holy month has started across Pakistan including Khyber-Pakhtunkhwa (K-P) and Federally Administered Tribal Areas (Fata) along with Saudi Arabia, UAE and other Gulf countries on the same day.
According to Secretary Ruet-e-Hilal committee research council, the moon can be visible across the country.
SLAYED BY SAUSAGE DOGS: Dachshunds maul woman to death
The dogs, whose legs were shorter than a human hand, ranged in age from one to three years old, with three females and four males. Dinwiddie said it was apparent that the dogs have been living in the woods. "This is just a bad deal all the way around".
The meeting was held at the main office of the Meteorological Department where evidence of moon sighting was collected. In case the new moon is not sighted today, then Ramadan in India, Pakistan, Bangladesh and other South Asia countries will begin on Friday May 18, 2018.
In Saudi Arabia and the United Arab Emirates, the moon was also sighted on Wednesday. He observed that the holy month is an opportunity for introspection.
Ramazan is a holy month for the world's almost 1.5 billion Muslims, many of whom practise the ritual of dawn-to-dusk fasting and prayers.
Meanwhile, special preparations are also on in the Muslim world for Salate Taraveeh - the special night prayers offered in the month of Ramadan besides daily prayers five times in a day. Ramadan is sacred to Muslims because tradition says the Holy Quran was revealed to Prophet Mohammed (peace be upon him) during that month.