Dear Sheetal,
Theft or sharing company information with rivals, and being on the payroll of one company while working for another, are relevant and established acts of misconduct punishable by the current employer. This may also lead to a loss of confidence.
Relevant Issues to Establish
1. Whether the employee has been working for another company without permission/authorization from your company, which could establish the charge of double employment.
2. Whether the employee has been passing on all data, including vendors, costs, clients, etc., to another firm, which could lead to two additional charges.
After meticulously working out the above, please issue a Show Cause notice, followed by a charge sheet, and conduct an inquiry through a competent Enquiry Officer. Allow the employee to present their side of the story/evidence for rebuttal, and take appropriate action accordingly.
If the above charges are proven, the charge of loss of confidence may be sufficient to bypass the need for an inquiry, but I recommend proceeding with one to be on the safe side.
Regards,
S.K. Johri