Looking for free Voucher for the MCN certification

Hello @sonu rawat you will not find shared vouchers in this Community. However, please have a look at the following ways to try to get one, instead :

• take monthly trailhead quests to try to win gifts/swags and even vouchers : https://trailhead.salesforce.com/quests. this month, you have these quests to get a chance maybe to win a certification voucher. Good luck !
  • https://trailhead.salesforce.com/users/teamtrailhead/trailmixes/super-quest-mfa-sso-settings
  • https://trailhead.salesforce.com/users/teamtrailhead/trailmixes/activate-agentforce-service-agents
  • https://trailhead.salesforce.com/users/teamtrailhead/trailmixes/get-started-with-aiforce-quest
• Attend Salesforce related events, or user community events, in your area ; there could be vouchers to win too : https://trailhead.salesforce.com/community/conferences/ & https://trailblazercommunitygroups.com/?&utm_source=trailhead&utm_medium=web-banner&utm_campaign=community_groups
• if your company is Salesforce partner, you may have free vouchers (or discounted ones) according to your partnership level. See with your Salesforce's Partner Account Manager, or the person in charge in your company.

Good luck ! 

Eric