invalid return but 143(1) served

Vineet (MBA) (77 Points)

31 August 2018  
What to do about the following?

Original filed 14/07/2017 , ITR3/44ADA, successfully e verified.

Declared defective, CPC comminication date - 19/10/2017, error code 181 (formal notice).

1. Fault accepted, Rectified return filed u/s 139(9) on 1/11/2017.

Declared defective, CPC communication date 03/02/2018, error code 181 (formal notice).

2. Fault accepted, Rectified return filed u/s 139(9) on 14/02/2018.

In March 2018, 143(1) was sent with reference number of "rectified return 2", with all incomes duly acknowledged, and five rupees demand.

At the same time, this February Return PDF is watermarked ïnvalid" on efiling site, but no formal notice of this has been served.

What to do?