php max_execution_time not working in laravel app

I tried to upload files using laravel app. The file was large so its take some time to process in controller. After 30 seconds request was cancelled. Then i changed max_execution_time = 30 to max_execution_time = 500 and restart apache2 service.its reflect in phpinfo() but its still cancelled after 30 seconds. whats wrong with me? please help me.

Here is phpinfo()

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