You have tagged two institutes Mahatma Gandhi mission Jawahar Lal Nehru Engineering College and Central tool room and training centre Bhubaneswar. So I am telling about both of them.

Mahatma Gandhi mission Jawaharlal Nehru Engineering College does not offer diploma course in aerospace engineering to the students. However Central tool room and training centre Bhubaneswar offers diploma in Aerospace Manufacturing (not in Aerospace Engineering). The total fees of postgraduate diploma in Aerospace Engineering is 60000. It is a one year duration course which is offered for 30 seats.

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https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.careers360.com/colleges/central-tool-room-and-training-centre-bhubaneswar/amp&ved=2ahUKEwjCk8eg0_D2AhXYBt4KHXrmAFsQFnoECCgQAQ&usg=AOvVaw2VeXa_eSRQ1Gq4e612NKeT