Hi Saravanan
Kindly follow the steps
1. Central services instance for ABAP installation.
2 Central services instance for JAVA installation.
3 First MSCS node installation
4 Database Instance Installation using backup restore method
5 Additional MSCS node installation
6 Enqueue replication server installation for ABAP in Node I (10)
7 Enqueue replication server installation for JAVA in Node I (12)
8 Enqueue replication server installation for ABAP in Node II (10)
9 Enqueue replication server installation for JAVA in Node II (12)
10Central Instance Installation in Node I
11 Secound node installation as per the installation guide
12 Post processing steps after system copy
Kindly go thru the Installation Guide link - http://service.sap.com/instguides and SCN link
http://scn.sap.com/docs/DOC-8761
Thanks
Ram