Under section 80 gg

Rahul Khurana (20 Points)

01 May 2021  
itr ay 2019-20 was processed now I have received a demand notice under section 154.
issue is that I was take deduction benefits of rs 48000 in section 80 gg. now income tax department cancel my deduction in this section.
I am working in psu. kindly reply.