While adding leads from laravel app using php sdk 2.0, Lead Source not reflecting in CRM Leads

While adding leads from laravel app using php sdk 2.0, Lead Source not reflecting in CRM Leads

I have integrated Zoho CRM in my laravel application to push leads from my laravel portal to zoho crm using PHP sdk 2.0 https://github.com/zoho/zohocrm-php-sdk-2.0.

I have implemented below code to create records (leads) in CRM

$record->addFieldValue(Leads::LeadSource(), new Choice('Employee Referral'));
 $record->addFieldValue(Leads::Industry(), new Choice('Information Technology (IT)');

Leads are successfully added in CRM, but these Choice Fields => Industry and Lead Source are showing empty in CRM.

What will be solution to this issue?