I received a defective return notice. How should I respond?

When the ITR is defective u/s 139(9), the Income Tax Department sends a defective return notice if it has found an error with the income tax return you have filed.

Read this blog post to understand the common reasons for getting the defective return notice and how to respond to the same: http://blog.cleartax.in/how-to-respond-to-a-defective-return-notice/