Rāhu (Rahu) shows the hangman's noose and also a beheaded person because Rāhu is only a head without a body. Rāhu (Rahu) in the Lagna and Ketu in the 7th House show the head and body separated or the spine broken. Ravi in the Lagna shows a political power oriented crime and punishment and that the leadership of the country has ordered the hangman to do what is to be done. This hanging is as per the Orders of the judiciary as Gurū (Guru) (Judiciary) also aspects Lagna.
The Lagneśa Maṅgala (Lagnesha Mangal) is in the Māraka Bhāva (Maraka Bhava) in the 2nd House and receives the 12th Bhāva aspect of Rāhu confirming the fact of hanging to death. Dhanuṣa Rāśi (Dhanusha Rashi) indicates fall from a height. In this case it is only a minor height but it is enough since the ground beneath the feet is knocked away and furnishes sufficient height.
The 3rd Bhāva from the Ārūḍha Lagna (Arudha Lagna) shows the place of death. The Ārūḍha Lagna (Arudha Lagna) (AL) is in the Karma Bhāva/ Bhava in the 10th House showing fame (public awareness of his death)-this is really not fame but ignominy and shame as the glorious Sun/ Ravi is eclipsed by Rāhu (Rahu) and its Tāmasic (Tamasic) darkness.
The 3rd Bhāva from the AL is the 12th Bhāva from the Lagna showing seclusion through hospitals and jails. Kasab was hanged in the Yerawada gaol in Pune, India. The Rāśi (Rashi) here is Tulā (Tula) / Libra the sign where Ravi is Nīca (Neecha)-where the Sun showing Order and light (Ṛta) sets and where rebirth occurs. Tulā/ Tula is the natural Māraka (Maraka) for the Lagna and here we have the 7th and 8th Lords Śukra (Shukra) and Budha joined, ending (7th) of the longevity (8th) and the end of life (12th). Śani (Shani) is exalted here showing sin accompanying the death.
It is confirmed that the mind of the terrorist was and is in Narka (hell) as the Bhāgyeśa (Bhagyesha) or the 9th Lord Cañdra (Chandra) is in the 8th Bhāva (Bhava) from itself in Maraṇa Kāraka Sthāna (Marana Karaka Sthana or MKS), the worst possible placement. This was a homicidal maniac (zealot) killing in the name of religion (Karkaṭa (Karkata) is the 9th Bhāva (Bhava) of religion!).