Vicarious has many meaning and depending on context, you may pick up the befitting equivalent. प्रतिनियुक्त/ प्रतिनिधिमूलक/ स्थानापन्न दायित्व (Pratiniyukt/Pratinidhimulak/SthAnApann dAyittav) stands for deputed/done for another/acting as substitute respectively.

Liability imposed upon a person even though not a party to a particular occurrence, eg, the owner of a motor vehicle is vicariously responsible for injuries even though he is not driving the car at the time of the occurrence.

Where one person is liable for the acts of another. Most commonly used in relation to employment where the employer is liable for any wrongful acts of an employee during the course of their employment. So if a contract made by an employee on behalf of a company is fraudulent the company is still liable.

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Note added at 20 mins (2006-12-04 03:45:44 GMT)
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typo : many meaningS