Parties and procedural roles: The elected Government of NCT Delhi was the appellant. The Union of India and the Lieutenant Governor’s administration were respondents. The proceeding was a constitutional appeal about institutional power, not a private plaintiff’s damages claim. In Indian Supreme Court terminology, these parties are therefore described as petitioner/appellant and respondent, accused/prosecution, or contemnor/Court as appropriate—not automatically as plaintiff and defendant.

Detailed factual and procedural background: The elected Government of NCT Delhi appealed against the Union of India, disputing who controlled day-to-day executive administration under Article 239AA. The Union defended a broad role for the Lieutenant Governor. The conflict repeatedly stalled decisions and raised how a Union Territory with an elected assembly differs from an ordinary State.

How the dispute reached the Court: The proceeding numbered C.A. No. 2357/2017 developed through the events recorded in the timeline: 2015: Delhi High Court held the Lieutenant Governor was administrative head of NCT Delhi. Delhi Government appealed. November–December 2017: Constitution Bench heard the matter. 4 July 2018: unanimous principles on representative government and aid and advice were delivered. The concrete problem was not merely academic; it required the Court to decide: Is the Lieutenant Governor the executive head of Delhi? When is concurrence required, and when may a matter be referred to the President under Article 239AA(4)?

Delhi argued that democratic accountability requires the Lieutenant Governor ordinarily to act on ministerial aid and advice. The Union emphasised Delhi’s Union Territory status and the text allowing referral of differences to the President. The Court reconciled federal control with representative governance.

Expanded comparison of the competing positions: The side seeking relief asked the Court to apply Collaborative federalism; representative democracy; constitutional morality; collective responsibility to the actual institutional or individual harm shown by the record. The opposing side relied on statutory authority, procedural regularity, governmental necessity, finality or administrability, depending on the proceeding, and urged a narrower remedy. Both positions had to be tested against Government of National Capital Territory of Delhi Act, 1991; Transaction of Business Rules, 1993 and Articles 239, 239AA, 239AB, 246 and 73.

What the Court had to evaluate: It examined the text and purpose of the governing provisions, binding precedent, the evidentiary or institutional record, and the practical consequences of accepting either interpretation. The decisive questions were: Is the Lieutenant Governor the executive head of Delhi? When is concurrence required, and when may a matter be referred to the President under Article 239AA(4)?

The Court held that the Lieutenant Governor is generally bound by the aid and advice of Delhi’s Council of Ministers on subjects within the Assembly’s competence, except land, police and public order. Concurrence is not required for every decision; referral must be exceptional and exercised with constitutional statesmanship.

Reasoning and legal effect: The result followed from the Court’s application of Collaborative federalism; representative democracy; constitutional morality; collective responsibility to Government of National Capital Territory of Delhi Act, 1991; Transaction of Business Rules, 1993 read with Articles 239, 239AA, 239AB, 246 and 73. The Court distinguished the legal rule binding future courts from observations confined to the facts, and tailored the operative relief to the procedural posture of GOVT. OF NCT OF DELHI vs UNION OF INDIA.

Practical consequence: The parties are bound by the operative directions in C.A. No. 2357/2017; lower courts, governments, regulators or investigating authorities must apply the stated ratio in materially similar cases. Any prospective limitation, remand, monitoring direction, bail condition, implementation safeguard or preservation of concluded matters mentioned above forms part of the scope of the ruling. The signed judgment remains controlling if a short summary and the operative paragraphs differ.

Government of National Capital Territory of Delhi Act, 1991; Transaction of Business Rules, 1993

Articles 239, 239AA, 239AB, 246 and 73

Collaborative federalism; representative democracy; constitutional morality; collective responsibility