Question: Shakuntala is a play by what Classical Sanskrit writer?

Context paragraphs:
Kaviratna Kalidasa: Kaviratna Kalidasa (Kannada: ಕವಿರತ್ನ ಕಾಳಿದಾಸ ) is a 1983 Kannada historical drama film based on the life of Kalidasa, a renowned Classical Sanskrit writer of 4th Century A.D., whose name was extremely popular across Indian sub-continent.  The film was written and directed by Renuka Sharma and produced by V. S. Govinda.  The film starred Rajkumar, portraying the title role of Kalidasa, along with Jaya Pradha in the role of Vidyadhare and Srinivasa Murthy as Raja Bhoja.  The movie is based on the legends of the poet Kālidāsa.

Injunctive mood: The injunctive mood was a mood in Sanskrit characterized by secondary endings but no augment, and usually looked like an augmentless aorist or imperfect.  It typically stood in a main clause and had a subjunctive or imperative meaning; for example, it could indicate intention, e.g. "índrasya nú vīryā̀ṇi prá vocam" "Indra's heroic deeds will/shall I now declaim" (Beekes, Comparative Indo-European Linguistics, An Introduction.  1995, p.245).  It was obligatory for use in prohibitions, where it follows "mā́".  In later Classical Sanskrit, only the use after "mā" remained (there are no accents in Classical Sanskrit).

Shakuntala: In Hinduism Shakuntala (Sanskrit: "Śakuntalā") is the wife of Dushyanta and the mother of Emperor Bharat.  Her story is told in the "Mahabharata" and dramatized by many writers, the most famous adaption being Kalidasa's play "Abhijñānaśākuntala" "(The Sign of Shakuntala)".

Vedic and Sanskrit literature: Vedic and Sanskrit literature comprises the spoken or sung literature of the Vedas from the early-to-mid 2nd to mid 1st millennium BCE, and continues with the oral tradition of the Sanskrit epics of Iron Age India; the golden age of Classical Sanskrit literature dates to Late Antiquity (roughly the 3rd to 8th centuries CE).  Indian literary production saw a late bloom in the 11th century before declining after 1100 CE, hastened by the Islamic conquest of India, due to the destruction of ancient seats of learning such as the universities at Taxila and Nalanda.  There are contemporary efforts towards revival, with events like the "All-India Sanskrit Festival" (since 2002) holding composition contests.

Dhruva (band): Dhruva (Devnagari ध्रुवा) is an Indian musical band.  It is considered to be India's first Sanskrit band.  The band is based in Bhopal, Madhya Pradesh.  The band's genre is fusion with the use of Indian instruments such as bansuri, shankha, tabla, pakhavaj and European instruments such harmonium, guitar and acoustic drums.  The founder of this band is Dr. Sanjay Dwivedi who has a doctoral degree in Sanskrit and is a practitioner of Indian classical music.  The band first played on 24 January, 2015, with other members being Vaibhav Santore and Dyneshwari Parsai In 2015 the band played at World Sanskrit Day celebrations in New Delhi.  Apart from original compositions their numbers are taken from Rig Veda, the works of Adi Shankaracharya, Shiv Tandav, Jaidev, Madhurashtakam, love letters from Abhigyan Shakuntala.

Sanskrit Buddhist literature: Sanskrit Buddhist literature refers to Buddhist texts composed in classical Sanskrit or Buddhist Hybrid Sanskrit.  Sanskrit was the main language used by Indian Mahayana Buddhists and most major Mahayana sutras were composed in this language.  they are translated through pali canon.

Kālidāsa: Kālidāsa was a Classical Sanskrit writer, widely regarded as the greatest poet and dramatist in the Sanskrit language.  His plays and poetry are primarily based on the Indian Puranas.

Sakthibhadran: Sakthibhadran (शक्तिभद्रः ) was a Classical Sanskrit writer, who lived in ancient Kerala.  He wrote "Ascharyachoodamani" (Devanāgarī: आश्चर्य चूठामणि ), the first Sanskrit drama from South India.  He may have been born in Kodumon a village in Adoor, Pathanamthitta, Kerala, between the 7th and 11th centuries.

Kalidas Samman: The Kalidas Samman (Hindi: कालिदास सम्मान ) is a prestigious arts award presented annually by the government of Madhya Pradesh in India.  The award is named after Kālidāsa, a renowned Classical Sanskrit writer of ancient India.  The Kalidas Samman was first awarded in 1980.  It was initially conferred in alternate years in the fields of Classical Music, Classical Dance, Theatre and Plastic Arts.  From 1986-87 onwards, the awards were presented in all four fields every year.  The award is presented for outstanding achievement in one of the four categories.

Shakuntala (play): Shakuntala, also known as The Recognition of Shakuntala, The Sign of Shakuntala, and many other variants (Devanagari: अभिज्ञानशाकुन्तलम् – Abhijñānashākuntala), is a Sanskrit play by Kālidāsa, dramatizing the story of Shakuntala told in the epic Mahabharata.  It is considered to be the best of Kālidāsa's works.  Its date is uncertain, but Kālidāsa is often placed in the period between the 1st century BCE and 4th century CE.

Supporting paragraphs: Shakuntala (play) Kālidāsa
Answer: Kālidāsa