Election Commission Of India [Eci] — change of address

I have shifted my residence so i want to change my address in election data so i can vote in coming election so i went to the camp which is doing correction and they asked me to fill up the form and copies of addrees proof aadhar card etc but they asked me to provide neighbours election card for their reference which i was not aware of it. Why it is needed? They can verify from my address through their data. They do not want to take trouble so they ask you to provide everything so their job becomes easy. Pl do the needful.