Khazainul-Futuh by Amir Khusru, quoted in Khalji Kalina Bharata, Persian texts translated into Hindi by S.A.A. Rizvi, Aligarh, 1955. p. 156-157 ff 
Quotes from the Khazainul-Futuh
                                    
“As an example, the exploits of one of Jahangir’s commanders, Abdullah Khan Uzbeg Firoz Jung, can provide an idea of the excessive cruelty perpetrated by the government. Peter Mundy, who travelled from Agra to Patna in 1632 saw, during his four days’ journey, 200 minars (pillars) on which a total of about 7000 heads were fixed with mortar. On his way back four months later, he noticed that meanwhile another 60 minars with between 2000 and 2400 heads had been added and that the erection of new ones had not yet stopped. Abdullah Khan’s force of 12,000 horse and 20,000 foot destroyed, in the Kalpi-Kanauj area, all towns, took all their goods, their wives and children as slaves and beheaded and ‘immortered’ the chiefest of their men.”
            Mundy, Travels, II, pp. 90, 185, 186. quoted from Lal, K. S. (1992). The legacy of Muslim rule in India. New Delhi: Aditya Prakashan. Chapter 7 
Generals under the command of Jahangir
        
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Jahangir 23
4th Mughal Emperor 1569–1627Related quotes
                                        
                                        About Sultan ‘Alau’d-Din Khalji (AD 1296-1316) in Delhi.  S.A.A. Rizvi, Khalji Kalina Bharata, Aligarh, 1955, pp. 156-57. 
Khazainu’l-Futuh
                                    
                                        
                                        Shah Nawaz Khan, Maasir-ul-Umara, I, 105. quoted from K.S. Lal, Muslim slave system in medieval India, chapter 6 
Generals under the command of Jahangir
                                    
Shams Siraj Afif, quoted in Lal, K. S. (1999). Theory and practice of Muslim state in India. New Delhi: Aditya Prakashan. Chapter 3
The Decline and Fall of Practically Everybody (1950), Part IV: A Few Greats, Catherine the Great
Tarikh-i-Alamgiri, Kazim 1865, https://books.google.co.in/books?id=lhUwDwAAQBAJ&pg=PA56&lpg=PA56&dq=Abdali%E2%80%99s+soldiers+would+be+paid+5+Rupees+(a+sizeable+amount+at+the+time)+for+every+enemy+head+brought+in.+Every+horseman+had+loaded+up+all+his+horses+with+the+plundered+property,+and+atop+of+it+rode+the+girl-captives+and+the+slaves.+The+severed+heads+were+tied+up+in+rugs+like+bundles+of+grain+and+placed+on+the+heads+of+the+captives%E2%80%A6Then+the+heads+were+stuck+upon+lances+and+taken+to+the+gate+of+the+chief+minister+for+payment.&source=bl&ots=A22xMHoI9O&sig=ACfU3U3cQpuPeB4cwY8beK1nWw8rvuBaHA&hl=en&sa=X&ved=2ahUKEwjQ4MzCnY3mAhXaZSsKHcPcBjQQ6AEwAnoECAkQAQ#v=onepage&q=Abdali%E2%80%99s%20soldiers%20would%20be%20paid%205%20Rupees%20(a%20sizeable%20amount%20at%20the%20time)%20for%20every%20enemy%20head%20brought%20in.%20Every%20horseman%20had%20loaded%20up%20all%20his%20horses%20with%20the%20plundered%20property%2C%20and%20atop%20of%20it%20rode%20the%20girl-captives%20and%20the%20slaves.%20The%20severed%20heads%20were%20tied%20up%20in%20rugs%20like%20bundles%20of%20grain%20and%20placed%20on%20the%20heads%20of%20the%20captives%E2%80%A6Then%20the%20heads%20were%20stuck%20upon%20lances%20and%20taken%20to%20the%20gate%20of%20the%20chief%20minister%20for%20payment.&f=false