Xinetd Connection closed immediately

Question

We are migrating service from Solaris inetd to RHEL 7.x xinetd services. Following the configuration for service configured in xinetd

`service devb_tigre
 {
    socket_type     = stream
    protocol        = tcp
    wait            = no
    user            = root
    server          = /usr/bin/ksh
    server_args     = /opus/common/bin/tigred_run.sh devb
 }`

we have also added port/protocol entry in /etc/services file. port is 2060

After starting the xinetd service we see port is listing but if we telnet to it shows following result Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. Connection closed by foreign host.

contents of /opus/common/bin/tigred_run.sh are as follows

   `#!/bin/ksh
     . /opus/environments/$1/etc/opus.env >/dev/null 2>&1

      set +vx
      exec $TIGRE_BIN/tigred >/dev/null 2>&1`

please could anyone help on this

we should getting following result when telnet to it

# telnet localhost 2060 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. *OK ~