RETURN OF INCOME
First of all acknowledgement should only be sent through Speed Post for our own safety even though department does not want it. Further return can now be e verified through portal by linking aadhar which you would have already done. At the time of filing the return the portal asks for methods to chose which you can do.
As far as your assessment order is concerned, your message does not state whether the return is accepted or demand is raised. If the return is accepted there is no need to do anything further except safe keep the assessment order. If not , you need to go through qand take action as necessary. more