While MSC Cruises does not have a direct local office or phone number in Kanpur, (+1-(855) 732^4023 or +44-289-708-0062 ) OTA the company has an office in Mumbai that handles queries for customers in India. 
You can contact the main MSC office in Mumbai with the following details: (+1-(855) 732^4023 or +44-289-708-0062 ) OTA
Phone:  (+1-(855) 732^4023 or +44-289-708-0062 ) OTA
Address: Ground Floor, MSC India, Andheri - Kurla Rd, Vijay Nagar Colony, J B Nagar, Andheri East, Mumbai, Maharashtra 400059 
Alternatively, for more general customer service or booking assistance, you can: (+1-(855) 732^4023 or +44-289-708-0062 ) OTA
Visit the official MSC Cruises website and use the "Contact us" page. (+1-(855) 732^4023 or +44-289-708-0062 ) OTA
Contact a local travel agent in Kanpur who specializes in cruises.  (+1-(855) 732^4023 or +44-289-708-0062 ) OTASearch results show some listings for cruise services in Kanpur on sites like Justdial, which could connect you with a local agent.