Exporting Oracle 11G R2 dump file - oracle11gr2

Question

I am new to oracle and need to start a project. For this I need to restore a dump file. I tried all the methods, but not getting success. Dump file is from Oracle 11 G R2 and same version is installed on my desktop Windows PC. Steps followed are as below:
Microsoft Windows [Version 10.0.10586]
(c) 2015 Microsoft Corporation. All rights reserved.
C:\Users\kartikeyap>SQLplus
SQL*Plus: Release 11.2.0.1.0 Production on Thu Sep 8 23:38:58 2016
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Enter user-name: SYSTEM
Enter password:
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> create tablespace csiprod datafile 'csiprod' size 3000M
2 ;
Tablespace created.
SQL> create user csitest identified by csitest default tablespace csiprod temporary tablespace temp;
User created.
SQL> grant all privileges to csitest;
Grant succeeded.
SQL> create or replace directory c_drive as 'C:/';
Directory created.
SQL> grant read,write on directory c_drive to csitest;
Grant succeeded.
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
C:\Users\kartikeyap>cd\
C:\>impdp SYSTEM/diya2478 schemas=csitest directory=c_drive dumpfile=csiprod.dmp;
But every time I am getting error below:
Import: Release 11.2.0.1.0 - Production on Thu Sep 8 23:44:50 2016
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
ORA-39001: invalid argument value
ORA-39000: bad dump file specification
ORA-31640: unable to open dump file "C:/csiprod.dmp;" for read
ORA-27041: unable to open file
OSD-04002: unable to open file
O/S-Error: (OS 2) The system cannot find the file specified.
It will be of great help if someone take a look and get this resolved for me.