Hi, If the employee is currently on the regular payroll and signs the Attendance Register, it would be better to move the employee to a Retainer Contract. You may credit the salary after adjusting the TDS in his Indian Bank Account. A TDS certificate should be issued on a yearly basis, and it is up to the employee to file income tax returns.
Confidentiality and Work Timings
If the employee is going to use his own system/laptop, include company confidentiality terms in the contract letter. Specify the work timings. It is advisable to discuss whether the employee will be working as a full-time consultant or a part-time consultant.