The Cambridge History of India, Vol. IV: The Mughul Period v4.c3.5

v4.c3.5

At his death reaction was certain and under Jahāngīr, whose temperament was artistic rather than practical and in whom generosity degenerated into self-indulgence, administration declined. For a time there was a revival under Shāh Jahān, whose success in India led him to attempt the traditional enterprise of his line for the recovery of Central Asia. But a century of life in India had produced Mughul princes disinclined for the rigours and solitudes to be endured north of the Hindu Kush and the effort failed.