Question: Who is the present air force chief of the country with a constitution?

full_context: Document 1: Directorate General of Civil Aviation (India): Directorate General of Civil Aviation नागर विमानन महानिदेशालय Directorate General of Civil Aviation, India Agency overview Headquarters New Delhi, India 28 ° 34 ′ 58.56 ''N 77 ° 12 ′ 47.12'' E ﻿ / ﻿ 28.5829333 ° N 77.2130889 ° E ﻿ / 28.5829333; 77.2130889 Minister responsible Pusapati Ashok Gajapathi Raju, Indian Politician., Minister of Civil Aviation Agency executive BS Bhullar, Director General Child agencies Airports Authority of India Air India Pawan Hans Website Official website
Document 2: List of chief ministers of Himachal Pradesh: Since 1952, five people have been Chief Minister of Himachal Pradesh. Three of these belonged to the Indian National Congress party, including inaugural office - holder Yashwant Singh Parmar. After his first term ended in 1956, Himachal Pradesh was made a union territory, and the office of Chief Minister ceased to exist. In 1963, Parmar once again became Chief Minister, and during his reign, in 1971, Himachal regained full statehood. Until March 2015, when he was surpassed by Virbhadra Singh, Parmar was the state's longest - serving chief minister. Since 1993, the chief ministership has changed hands every five years between Virbhadra Singh of the Congress and Prem Kumar Dhumal of the Bharatiya Janata Party. The current incumbent is Jai Ram Thakur of the Bharatiya Janata Party having been sworn in on 27 December 2017.
Document 3: Chief of the Army Staff (India): No. Name Rank Photo Appointment Date Left Office Unit of Commission Decorations Rob Lockhart General 15 August 1947 31 December 1947 51st Sikhs KCB, CIE, MC Roy Bucher General 1 January 1948 15 January 1949 Cameronians (Scottish Rifles) KBE, CB, MC Kodandera M. Cariappa General 16 January 1949 14 January 1953 Rajput Regiment OBE Rajendrasinhji Jadeja General 14 January 1953 1 April 1955 2nd Lancers (Gardner's Horse) DSO
Document 4: Chief of Army Staff (Pakistan): The Chief of Army Staff (Urdu: سربراہ پاک فوج ‎ ‎) (reporting name: COAS), is a military appointment and statutory office held by the four - star rank army general in the Pakistan Army, who is appointed by the Prime Minister of Pakistan and final confirmation by the President of Pakistan.
Document 5: List of chief ministers of Rajasthan: From 1949, 13 people have been Chief Minister of Rajasthan. Mohan Lal Sukhadia was the longest serving Chief Minister of Rajasthan. After securing majority in 2013 assembly election, Vasundhara Raje of the Bharatiya Janata Party is the incumbent Chief Minister.
Document 6: Food Safety and Standards Authority of India: The FSSAI is headed by a non-executive Chairperson, appointed by the Central Government, either holding or has held the position of not below the rank of Secretary to the Government of India. Ashish Bahuguna is the current Chairperson for FSSAI and Pawan Kumar Agarwal is the current Chief Executive Officer for FSSAI.
Document 7: List of chief ministers from the Bharatiya Janata Party: The Bharatiya Janata Party (BJP) is one of the two major parties in the political system of Republic of India, the other being the Indian National Congress (INC). As of 2015, it is the country's largest political party in terms of representation in the national parliament. Established in 1980, the BJP's platform is generally considered as the right - wing of the political spectrum. As of March 2017, 40 BJP leaders have held the position of a chief minister, out of which thirteen are incumbent. A chief minister is the head of government of each of the twenty - nine states and two union territories (UTs) (Delhi and Puducherry). According to the Constitution of India, at the state - level, the governor is de jure head, but de facto executive authority rests with the chief minister. Following elections to the state legislative assembly, the governor usually invites the party (or coalition) with a majority of seats to form the government. The governor appoints the chief minister, whose council of ministers are collectively responsible to the assembly. Given he / she has the assembly's confidence, the chief minister's term is usually for a maximum of five years; there are no limits to the number of terms he / she can serve.
Document 8: List of chief ministers from the Bharatiya Janata Party: Of the 41 BJP chief ministers, fourteen are incumbent -- Pema Khandu in Arunachal Pradesh, Sarbananda Sonowal in Assam, Raman Singh in Chhattisgarh, Manohar Parrikar in Goa, Vijay Rupani in Gujarat, Manohar Lal Khattar in Haryana, Jai Ram Thakur in Himachal Pradesh, Raghubar Das in Jharkhand, Shivraj Singh Chouhan in Madhya Pradesh, Devendra Fadnavis in Maharashtra, N. Biren Singh in Manipur, Vasundhara Raje in Rajasthan, Trivendra Singh Rawat in Uttarakhand, and Yogi Adityanath in Uttar Pradesh. Four of BJP chief ministers are / have been women -- Sushma Swaraj in Delhi, Uma Bharti in Madhya Pradesh, Anandiben Patel in Gujarat and Vasundhara Raje in Rajasthan. Holding the post since December 2003 (for 7003518700000000000 ♠ 14 years, 73 days), Raman Singh is the longest - serving chief minister from the BJP. Karnataka's B.S. Yeddyurappa's first tenure as the chief minister lasted for only nine days, which is the least tenure among chief ministers from BJP; however, taking the total of all the tenures into consideration, Swaraj served as a chief minister for the shortest period of 52 days. Bhairon Singh Shekhawat of Rajasthan was the first chief minister from the BJP; however some BJP leaders had already been elected before as the chief minister while being a member of the Janata Party (JP), an amalgam of political parties which included BJP's predecessor Bharatiya Jana Sangh. There have been five chief ministers from the BJP in Gujarat and Uttarakhand each, four chief ministers in Madhya Pradesh and Uttar Pradesh each, and three in Delhi, Himachal Pradesh, Jharkhand, and Karnataka each.
Document 9: Ministry of Defence (United Kingdom): The current Chief of the Defence Staff, the professional head of the British Armed Forces, is General Sir Nicholas Houghton, late Green Howards. He is supported by the Vice Chief of the Defence Staff, by the professional heads of the three services of HM Armed Forces and by the Commander of Joint Forces Command.
Document 10: Chief of the Air Staff (India): Chief of the Air Staff is the professional head and the commander of the Indian Air Force. The position is abbreviated as CAS in the Indian Air Force cables and communication, and is usually held by a four - star air officer of the rank Air Chief Marshal. The current CAS is Air Chief Marshal Birender Singh Dhanoa who took office on 31 December 2016, following the retirement of Air Chief Marshal Arup Raha.
Document 11: Chief minister (India): a citizen of India. should be a member of the state legislature. If a person is elected chief minister who is not a member of the legislature, then he / she must take sign from governor. of 25 years of age or more
Document 12: Pawan Kumar Chamling: Chamling is the longest standing current Chief minister of any state in India and the second longest serving Chief minister after India's independence, behind Jyoti Basu. Prior to establishing the Sikkim Democratic Front, Chamling served as Minister for Industries, Information and Public Relations from 1989 to 1992 in the Nar Bahadur Bhandari cabinet.
Document 13: List of current Indian chief ministers: In the Republic of India, a chief minister is the head of government of each of twenty-nine states and two union territories (Delhi and Puducherry). According to the Constitution of India, at the state-level, the governor is de jure head, but de facto executive authority rests with the chief minister. Following elections to the state legislative assembly, the governor usually invites the party (or coalition) with a majority of seats to form the government. The governor appoints the chief minister, whose council of ministers are collectively responsible to the assembly. Given he has the assembly's confidence, the chief minister's term is usually for a maximum of five years; there are no limits to the number of terms he or she can serve.Since June 2018, the office of Chief Minister of Jammu and Kashmir has been vacant; President's rule is in force there. Of the thirty incumbents, only one is a woman—Mamata Banerjee in West Bengal. Serving since March 2000 (for 19 years, 107 days), Odisha's Naveen Patnaik has the longest incumbency. Amarinder Singh (b. 1942) of Punjab is the oldest chief minister while Arunachal Pradesh's Pema Khandu (b. 1979) is the youngest. Twelve incumbents belong to the Bharatiya Janata Party and five to the Indian National Congress; no other party has more than one chief minister in office.
Document 14: List of chief ministers of Karnataka: Since 1947, twenty - two people have been Chief Minister of Mysore (as the state was known before 1 November 1973) and Karnataka. A majority of them belonged to the Indian National Congress party, including inaugural office - holder K. Chengalaraya Reddy. The longest - serving chief minister, D. Devaraj Urs, held the office for over seven years in the 1970s. As a Janata Party member, Ramakrishna Hegde served the most number of discontinuous terms (three), while the Congress's Veerendra Patil had the largest gap between two terms (over eighteen years). One chief minister, H.D. Deve Gowda, went on to become the eleventh Prime Minister of India, while another, B.D. Jatti, served as the country's fifth Vice President. There have been six instances of President's rule in Karnataka, most recently in 2007 -- 08.
Document 15: Chief of Army Staff (Pakistan): In 1969, the title of the army command was changed from ``Commander - in - Chief ''to`` Chief of Staff'' with President Yahya Khan acting as Commander - in - Chief and General A.H. Khan as Chief of Staff. On 20 March 1972, the post was renamed as ``Chief of Army Staff ''(COAS) with Lieutenant - General Tikka Khan elevated to four star rank to be appointed as army's first chief of army staff.
ground_truth: Birender Singh Dhanoa
sub_queries: what constitution? Answer: India
who is the present air force chief of India Answer: Birender Singh Dhanoa