You need to file a response within 30 days of receiving such notice. In your case, you should respond within the 17th of June, 2018.
To file a response:
Login to your PAN at Income Tax E-Filing Portal and click on E-proceedings.
Find your notice, and click on respond.
You can agree, disagree or Partially agree with the notice, you will be given an option to choose from this three. You can submit your response accordingly.
If you want me to file your response, you can book for my services from the Portfolio Page
Please mark your satisfactory level...
My Dear ,
I thank you for marking the answer as satisfactory.
I have noted.
It will be very nice and helpful to our other members (and the answerer too) if you mark your satisfaction level on the grade scale below.
Please feel free to mark any point. I don't share it with anyone. I use it for doing my internal calculations only. I use these calculations to evaluate the service performance of the relevant virtuoso.
Here is the grade scale:
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