C-17 Vishwashanti Nagar,
Khindipada Mulund-w,
Mumbai-400078,
9th May 2020.

To,
The Municipal Commissioner,
Brihanmumbai Municipal Corporation,
Mumbai.

Subject: Application for the inadequate supply of drinking water.

Respected Sir/Madam,

        I am a citizen of your governing province. I write this letter to draw your attention toward the unhygienic supply of water in Mulund Colony. We have been facing this inconvenience for a week now.We have complaint about this many times but till now not any action has taken to prevent this problem.

        Earlier there was a regular supply of water every day and also it had good quality. But now the quality of water has deteriorated and available only for two hours. It is in foul odor and light-yellow color due to this we have to be compelled to purchase drinking water or use groundwater.

        I hereby humbly request you to pay attention toward us and take action to prevent this problem as soon as possible. 

Thanking you,
Yours faithfully,

Subham Yadav
Note: For is used with a period of time.  Since is used to refer to a specific point in time