Taking note of the video, Additional Director (Health department) of Delhi, Dr S K Arora noted that the driver was smoking hookah "very proudly" without any fear while passing through the national capital.
In his letter, Mr Arora said as seen in the video, the driver of the Haryana roadways violated the Cigarette and Other Tobacco Products Act (COTPA) 2003.
"This is to bring to your kind notice that we have come to know through social media that a driver of Haryana Roadways Bus No HR55W 9038 has been violating laws during his driving very proudly without any fear while passing through Delhi.
"Smoking hookah in public service vehicle therefore violating Section 4 of COTPA 2003," Dr Arora said in his letter.
Dr Arora said that by smoking hookah while driving, the driver is putting the lives of passengers at risk.
"For this advertisement, the violation is being committed by Pataka group of companies and Haryana Roadways. It is worth mentioning that such advertisements are strategies of tobacco companies to attract minors and females.
"In view of all these, it is requested to take stringent action as needed as per law," Dr Arora said in the letter.