The Milinda Pañha ("Questions of Milinda") is a Buddhist text which dates from sometime between 100 BCE and 200 CE. It purports to record a dialogue between the Buddhist sage Nāgasena, and the Indo-Greek king Menander I (Pali: Milinda) of Bactria, who reigned from Sagala (modern Sialkot, Pakistan).
The Milinda Pañha is regarded as canonical in Burmese Buddhism, included as part of the book of Khuddaka Nikaya. An abridged version is included as part of Chinese Mahayana translations of the canon. The Milinda Pañha is not regarded as canonical by Thai or Sri Lankan Buddhism, however, despite the surviving Theravāda text being in Sinhalese script.
The Chinese text titled the Monk Nāgasena Sutra corresponds to the first three chapters of the Milindapanha. It was translated sometime during the Eastern Chin dynasty (317–420). 
It is generally accepted by scholars that the work is composite, with additions made over some time. In support of this, it is noted that the Chinese versions of the work are substantially shorter.
The earliest part of the text is believed to have been written between 100 BCE and 200 CE. The text may have initially been written in Sanskrit; however, apart from the Sri Lankan Pali edition and its derivatives, no other copies are known.
The oldest manuscript of the Pali text was copied in 1495 CE. Based on references within the text itself, significant sections of the text are lost, making Milinda the only Pali text known to have been passed down as incomplete.
The contents of the Milindapañhā are:
- Background History
- Questions on Distinguishing Characteristics : (Characteristics of Attention and Wisdom, Characteristic of Wisdom, Characteristic of Contact, Characteristic of Feeling, Characteristic of Perception, Characteristic of Volition, Characteristic of Consciousness, Characteristic of Applied Thought, Characteristic of Sustained Thought, etc.)
- Questions for the Cutting Off of Perplexity : (Transmigration and Rebirth, The Soul, Non-Release From Evil Deeds, Simultaneous Arising in Different Places, Doing Evil Knowingly and Unknowingly, etc.)
- Questions on Dilemmas : Speaks of several puzzles and these puzzles were distributed in eighty-two dilemmas.
- A Question Solved By Inference
- Discusses the Special Qualities of Asceticism
- Questions on Talk of Similes
According to Oskar von Hinüber (2000), while King Menander is an actual historical figure, Bhikkhu Nagasena is otherwise unknown, the text includes anachronisms, and the dialogue lacks any sign of Greek influence but instead is traceable to the Upanisads.
The text mentions Nāgasena's father Soñuttara, his teachers Rohana, Assagutta of Vattaniya and Dhammarakkhita of Asoka Ārāma near Pātaliputta, and another teacher named Āyupāla from Sankheyya near Sāgala.
According to the Milindapanha, Milinda/ Menander (who could be either Menander I or Menander II), embraced the Buddhist faith. He is described as constantly accompanied by a guard of 500 Greek ("Yonaka") soldiers, and two of his counsellors are named Demetrius and Antiochus.
In the Milindanpanha, Menander is introduced as the "[k]ing of the city of Sāgala in India, Milinda by name, learned, eloquent, wise, and able". Buddhist tradition relates that, following his discussions with Nāgasena, Menander adopted the Buddhist faith "as long as life shall last" and then handed over his kingdom to his son to retire from the world. It is described that he attained enlightenment afterwards.
The work has been translated into English twice, once in 1890 by Thomas William Rhys Davids (reprinted by Dover Publications in 1963) and once in 1969 by Isaline Blew Horner (reprinted in 1990 by the Pali Text Society).
- Questions of King Milinda, tr T. W. Rhys Davids, Sacred Books of the East, volumes XXXV & XXXVI, Clarendon/Oxford, 1890–94; reprinted by Motilal Banarsidass, Delhi Vol. 1, Vol. 2
- Milinda's Questions, tr I. B. Horner, 1963-4, 2 volumes, Pali Text Society, Bristol
- Pesala, Bhikkhu (ed.), The Debate of King Milinda: An Abridgement of the Milindapanha. Delhi: Motilal Banarsidass, 1992. Based on Rhys Davids (1890, 1894).
- Mendis, N.K.G. (ed.), The Questions of King Milinda: An Abridgement of the Milindapanha. Kandy, Sri Lanka: Buddhist Publication Society, 1993 (repr. 2001). Based on Horner (1963–64).
- Hinüber (2000), pp. 83-86, para. 173-179.
- According to Hinüber (2000), p. 83, para. 173, the first Chinese translation is believed to date from the 3rd century and is currently lost; a second Chinese translation, known as "Nagasena-bhiksu-sutra," (那先比丘經 Archived 2008-12-08 at the Wayback Machine) dates from the 4th century. The extant second translation is "much shorter" than that of the current Pali-language Mil.
- Hinuber (2000), pp. 85-6, para. 179.
- Hinüber (2000), p. 83, para. 173, suggests, based on an extant Chinese translation of Mil as well as some unique conceptulizations within the text, the text's original language might have been Gandhari.
- Hinuber (2000), p. 85, para. 178.
- Rhys Davids (1890, 1894), p. xlviii, writes: "[T]he 'Questions of Milinda' is undoubtedly the masterpiece of Indian prose, and indeed is the best book of its class, from a literary point of view, that had then been produced in any country."
- Winternitz, Moriz (1920). Geschichte der indischen Litteratur, Vol. 2, Die buddhistische Litteratur und die heiligen Texte der Jainas. Leipzig: C.F. Amelang, p. 141
- von Hinuber (2000), p. 83, para. 172.
- Gardner, Percy; Poole, Reginald Stuart, ed. (1886 ). The coins of the Greek and Scythic kings of Bactria and India in the British Museum, London: British Museum, p.50 and Pl. XII-7
- The Questions of King Milinda, translation by T. W. Rhys Davids, 1890
- The Questions of King Milinda, translated by Thomas William Rhys Davids. at Sacred-texts.com.
- The Debate of King Milinda, Most Recent HTML and PDF Editions.
- The Debate of King Milinda, Abridged Edition. Bhikkhu Pesala. Hosted at BuddhaNet.
- Milindapañha - Selected passages in both Pali and English, translated by John Kelly
- Milinda Panha Sinhalese translation