Tata Docomo — Re activate my docomo number ([protected])

Dear Sir/Madam,
I wish to activated my old no. which has been disconnected since long time. All my important document and work related are linked to this no. Also on the softer side, i have a great attachment with this no. I had been out of country hence the no got deactivated. i am willing tho bear the expenses for the same.
Humble request, Please do the needful