Get records of leads

Get records of leads

I am created client id and client secret code , code , refresh token and access token  using admin@changematrix.in developer account.

But when I am fetching records of Leads

When fetching records using self client then it showing correct leads information

but when i am fetching records using server based client. then it showing leads information is not present in my crm account.

I follow steps of generating access token from this https://www.zoho.com/writer/help/api/v1/oauth-step5.html