The view of an astronomical calculator expert Shaikh Musa Bazi (R.A.)
The Shaikh who had a deep understanding of classical as well as modern Astronomy, with the grace of Allah.
He would say, no one in entire Indo-Pak sub-continent knows better Astronomy (classical and modern) than him.
After explaining the classical and modern astronomical calculation in relation to moon sighting in Saudi Arabia, he said : 
It is possible to celebrate the Eid in Makkah 2 days prior to Pakistan. Rejecter of this fact will be regarded as lack of knowledge in the subject and less understanding of the relevant books. Claiming that, Saudis moon sighting is not based on Sharia, is clearly branding them as discarder of Quran and Sunnah. We cannot mistrust the Saudian pious Ulamas. Government may have common calendar, but Ulamas are not part of it. Remember in 1967 the Eid was observed in Makkah 2 days prior to Pakistan on Wednesday, while in Pakistan it was celebrated in Thursday and Friday.
(Falakiyyate Jadidah for Shaikh Moosa Bazi, Jameaah Ashrafiyyah Lahor, Pakistan)