Looks up a company by CIN in the MCA registry and returns canonical company details (cin, company_name, company_category, class_of_company, date_of_incorporation, registered_address, company_status, directors_brief, roc_code, registration_number, listed_status, extras).

Response contract: A successful verification returns HTTP 200 with status: "success", error_code: null, and a populated data object. A definitive no-record / invalid result ALSO returns HTTP 200 with status: "success", but carries a non-null error_code and data: null — every 2xx response is status: "success", so do NOT distinguish a full-success verdict from a no-record / invalid one by status; branch on error_code (null = full success, a non-null IDTO_2xx = no record / invalid). Only a raised error returns status: "error". Every response carries billed (whether the call was charged). All codes, messages and HTTP statuses are identical regardless of the underlying vendor. Authenticate with your X-Client-ID and X-API-KEY headers.

Codes: IDTO_202 (2xx, CIN invalid or not found in MCA records), IDTO_001 (missing/malformed CIN, 400), IDTO_009 (insufficient credits, 402), IDTO_006 (rate limited, 429), IDTO_007 (config error, 500), IDTO_008 (service busy, 503).