Urgent help

Hi sir, i hope you are doing well. sir thing is that we have paid TDS but we lost the challan, even we have cheque no, amount and the challans no, same request i had done this request before also and i am happy that i had got the reply also , they had given some web site like 

"https://tin.tin.nsdl.com/oltas/servlet/TanSearch" but this web site is not working now.. so is there any other way to fix up this problems??? Please help me on this.