Getting ForBidden Response for consent-requests/init for HIU

Sukreet @sukreet
Please help me with this
Steps i followed:
1.Creation of accessToken
https://dev.ndhm.gov.in/gateway/v0.5/sessions
{
“clientId”: “SBX_000178”,
“clientSecret”: “{secret}”
}

2.Creation bridge using access token
https://dev.ndhm.gov.in/devservice/v1/bridges
{

"url": "https://webhook.site/becaf57a-bbf9-479e-a2fb-8e3207fb33d5"

}

3.Registered a facitly
https://dev.ndhm.gov.in/devservice/v1/bridges/services
{
“id”: “NIKITHIU_124235”,
“name”: “NIKIT HIP”,
“type”: “HIU”,
“active”: true,
“alias”: [
“nikit”
]
}

4.Created a health id from https://healthid.ndhm.gov.in/
HealthId: nikithealthy@ndhm
This is a prod. health id, i have also tried fred-d@sbx for below request on step 5

  1. consent-requests/init
    https://dev.ndhm.gov.in/gateway/v0.5/consent-requests/init
    {
    “requestId”: “{{$guid}}”,
    “timestamp”: “{{timestamp}}”,
    “consent”: {
    “purpose”: {
    “text”: “string”,
    “code”: “CAREMGT”
    },
    “patient”: {
    “id”: “fred-d@sbx”
    },
    “hiu”: {
    “id”: “NIKITHIU_124235”
    },
    “requester”: {
    “name”: “Dr. Suman”,
    “identifier”: {
    “type”: “REGNO”,
    “value”: “MH1001”,
    “system”: “https://www.mciindia.org
    }
    },
    “hiTypes”: [
    “OPConsultation”
    ],
    “permission”: {
    “accessMode”: “VIEW”,
    “dateRange”: {
    “from”: “2020-09-25T12:52:34.925Z”,
    “to”: “2021-09-25T12:52:34.925Z”
    },
    “dataEraseAt”: “2021-10-25T12:52:34.925Z”
    }
    }
    }

Requested using above JSON, receiving Access Denied 403 Forbidden

Please help me