Unimark Pvt Ltd offers Proxy Pay ACS Card. Unimark offers technological End-To-End Payment Platform test tool to make sure that the payment system runs flawless. The Clear2Pay Issuer 3-D Secure Solutions offers a full product range to respond effectively, securely and efficiently. The Clear2Pay ACS Card is an authentication server for payments. It authenticates the Payer or Cardholder of a payment using Password or mechanisms based on Token, Secure device or GSM. The ACS also logs the transactions. The ACS is designed to operate in three different modes - Attempt, Stand Alone or Integrated.