OUTPUT should be :

abhi: old_file="ak.csv"
abhi: datefile="ak_nt_$curr_date.csv"
abhi:dbk: newwack="rac_client_$curr_date.ack"
abhi:dbk: IN_DIR="class/5060"
abhi:src: src_folder="class/5061"

bill: old_file="abh_cash.csv"
bill: date_file="ods_nt_cash_acc_$curr_date.csv"
bill: newwack="rac_cash_acc_$curr_date.ack"
bill: IN_DIR="xyx\5060"
      
payu: old_file="ods_ven.csv"
payu: newfile="ods_nt_ven_$curr_date.csv"
payu: newwack="rac_vendor_$curr_date.ack"
payu: IN_DIR="gunda\5060"
payu:bcc: newreck="client_$curr_simul.ack"
payu:bcc: IN_DIR="class/5062"
payu:src1: src_folder="class/5061"