Chinese President Hu Jintao left for Islamabad by a special flight after a two-day visit to India's financial hub.
The Chinese leader left at 2.05 pm from Mumbai International Airport.
He was seen off at the airport by Chief Minister Vilasrao Deshmukh, state chief secretary DK Sankaran and Sheriff Vijaypat Singhania.
The Chinese leader, who arrived here last evening, had a hectic schedule in Mumbai, including attending a Chinese-Indian Trade and Investment summit.
Hu also met sisters of Dwarkadas Kotnis besides meeting officials of the Chinese consulate General in Mumbai.