1) Copy the mobikwik.php file to upload\admin\controller\payment\mobikwik.php
2) Copy the mobikwik.php file to upload\admin\language\english\payment\ mobikwik.php
3) Copy the mobikwik.tpl file to upload\admin\view\template\payment\ mobikwik.tpl
4) Copy the mobikwik.php file to upload\catalog\controller\payment\ mobikwik.php
5) Copy the mobikwik.php file to upload\catalog\language\english\common\ mobikwik.php
6) Copy the mobikwik.php file to upload\catalog\language\english\payment\ mobikwik.php
7) Copy the mobikwik.php file to upload\catalog\model\payment\ mobikwik.php
8) Copy the response.tpl file to upload\catalog\view\theme\default\template\common\response.tpl
9) Copy the mobikwik.tpl file to upload\catalog\view\theme\default\template\payment\ mobikwik.tpl
10) Enter your MerchantIdentifier , Secret Key and select the Mode from the mobikwik Payment Method control panel & Enable it.