Article 21 vs Public Interest: A Hypothetical Conundrum

Govt of Maharashtra announces a public health measure to combat a growing TB epidemic in Mumbai. To curb the spread, the state issues a gazette notification mandating 6-month compulsory TB detection and treatment at a government-run facility for all residents of a specific slum area. The notification bars any individual from leaving the area or accessing private medical facilities for TB treatment for 6 months. A local resident, Mr. Kumar, is already undergoing private TB treatment but fears his treatment will be affected by the new measure. He files a Writ Petition in the HC, claiming that the state's actions infringe upon his fundamental right to life and personal liberty under Article 21 of the Constitution. What legal remedy applies to Mr. Kumar's situation?