Thank you so much Ram,
I have found the mongod port as 2222 and i have given the same as well. but now getting network error as mentioned below. Could you please suggest.
[root@******* ~]# ps -ef | grep -i mongod
mongod 2222 1 1 Aug18 ? 01:15:48 /usr/bin/mongod -f /etc/mongod-inst00.conf
root 4106 38552 0 09:27 ? 00:00:00 sshd: melinmongodbadm04 [priv]
melinmo+ 4108 4106 0 09:27 ? 00:00:00 sshd: melinmongodbadm04@pts/0
root 4431 4177 0 09:28 pts/0 00:00:00 grep --color=auto -i mongod
[root@******** ~]# mongo --host 'ddaa205a:2222' -u admin -p Logintoday@$2020 --authenticationDatabase admin bibhu
MongoDB shell version v3.6.5
connecting to: mongodb://ddaa205a:2222/bibhu
2020-08-23T09:34:13.372+0200 W NETWORK [thread1] Failed to connect to 10.183.128.52:2222, in(checking socket for error after poll), reason: Connection refused
2020-08-23T09:34:13.373+0200 E QUERY [thread1] Error: couldn't connect to server ddaa205a:2222, connection attempt failed :
connect@src/mongo/shell/mongo.js:251:13
@(connect):1:6
exception: connect failed
[root@******** ~]# mongo --host 'ddaa205a:2222' -u admin -p Logintoday$@2020 --authenticationDatabase admin bibhu
MongoDB shell version v3.6.5
connecting to: mongodb://ddaa205a:2222/bibhu
2020-08-23T09:36:54.561+0200 W NETWORK [thread1] Failed to connect to 10.183.128.52:2222, in(checking socket for error after poll), reason: Connection refused
2020-08-23T09:36:54.561+0200 E QUERY [thread1] Error: couldn't connect to server ddaa205a:2222, connection attempt failed :
connect@src/mongo/shell/mongo.js:251:13
@(connect):1:6
exception: connect failed