The officials from the office of Pakistan's Prime Minister crossed over Indo-Pak border via Wagah land transit route and from where they took a flight to New Delhi.
Nawaz Sharif would arrive in the Indian capital shortly before Modi is sworn-in at Rashtrapati Bhawan at 6pm on Monday.
Sharif would be accompanied by a delegation comprising his Advisor on National Security and Foreign Affairs Sartaj Aziz, Special Assistant to the Prime Minister on Foreign Affairs Tariq Fatemi and Foreign Secretary Aizaz Chaudhry.