The Cambridge History of India, Vol. IV: The Mughul Period v4.c19.147

v4.c19.147

When Malik 'Ambar's apprehensions had been thus removed he marched to the frontiers of Golconda to demand payment of his subsidy, which was two years in arrears, and having received the sum due and a renewal of Muhammad Qutb Shāh's promise to pay it regularly in future, he attacked Bīdar, expelled Ibrāhīm 'Ādil Shāh's garrison, and plundered the town and district, the annexation of which by Bījāpur during his preoccupation with the imperial troops he regarded as an act of bad faith. He then retired to Daulatābād, but in the following year returned with fifty or sixty thousand men and besieged Bījāpur.