Hello radhikapratapwar,
This is not really a WAMPServer problem, but with a database that large it would be better to use the mysql command line tools. These are not limited like PHP code is.
So try :
wampmanager -> MySQL -> MySQL console
And at the comand prompt enter
use YOUR_DATABASE_NAME;
source 'C:/path/to/backup.sql';
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(Windows 10 Pro 64bit) (Wampserver 3.3.4 64bit) Aestan Tray Menu 3.2.5.4
<Apache versions MULTIPE> <PHP versions MULTIPLE> <MySQL Versions MULTIPLE>
<MariaDB versions MULTIPLE> <phpMyAdmin versions MULTIPLE> <MySQL Workbench 8.0.23>Read The Manuals Apache --
MySQL --
PHP --
phpMyAdminGet your Apache/MySQL/mariaDB/PHP ADDONs here from the
WAMPServer alternate Repo-X-X-X-
Backup your databases regularly Here is How dont regret it later! Yes even when developing -X-X-X-