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Territorial jurisdiction -- Writ petition -- Dismissal from service -- Union of India and Director General, BSF situated in Delhi -- Delhi High Court has jurisdiction.

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A. Border Security Force Act, 1968 (47 of 1968), Sections 4 and 5 -- Border Security Force Rules, 1969, Rules 22 and 28A -- Constitution of India, Article 226(1) and (2) -- Territorial jurisdiction -- CAPF personnel -- Dismissal from service -- Union of India and Director General, BSF being necessary parties located in Delhi -- Delhi High Court has jurisdiction to entertain writ petition challenging dismissal from service notwithstanding that cause of action arose outside Delhi.

(Paras 17, 21, 27, 33, 34)

B. Constitution of India, Article 226 -- Forum non conveniens -- Doctrine ordinarily not attracted where writ jurisdiction is invoked under Article 226(1) based on situs of respondent authorities -- Availability of a more convenient forum or accrual of cause of action elsewhere does not by itself justify refusal to exercise jurisdiction -- Application of the doctrine in such cases may impede access to justice.

(Paras 35 to 37)