Shouldn't TDS be done on gross, rather than CTC. CTC will have many components that is non-taxable for the employee.
21st December 2017 From India, Kochi
Employer can only TDS if employee fails to submit his investment declaration. They just can't deduct fix amount from salary without taking their investment declaration. You can ask for salary structure from the employer to know the exact salary and deduction components. You can provide your investment declaration to get exemption from tax slab. Investment declaration can include your LIC or other tax saving policy details, mediclaim, conveyance, your interest on home loan or rent paid, etc.
23rd December 2017 From India, Ahmedabad