Hi Adarsh,
You can go for a homogeneous system copy. Depending on the database, you can select the database specific method, for eg, for ORACLE - go for backup and restore and for DB2 go for a redirected restore etc. Also, you can use R3load based system copy method to build your target system.
You can start with below URL.
System Copy - Technical Operations Manual for SAP NetWeaver - SAP Library
Regards,
Divyanshu