There is no service center for sennheiser in Patna.
In India there is totally 3 service centres which were located in Bangalore,mumbai,guragon.first have to confirm which one is near to you.
Sennheiser is a German based headphone company and also they provide two years warranty.U just send your product along with the invoice copy or purchase bill of the product.sending option is your wish (courier or post).once they received within 7working days they ll dispatch back to you.Most of the sennheiser headphones are non repairable.They ll providing replacement only.one more thing you don’t worry about that you don’t have invoice in this case u should keep with the box of the product.
You can contact via this number 1800-200-3632 for your product warranty or replacement.
the nearest service center to you is located at kolkata
Kolkata Service Center
Sennheiser Electronics India Pvt. Ltd.
C/0 Telerad
10, 1st Floor, Princep St,
Kolkata, West Bengal 700012
Ph- 033 4069 2017
You can check for more service centers on their website.
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