Dear Mr. Shinde,
We can claim a deduction for professional tax under section 16(iii) of the Income Tax Act, 1961. For more clarity, please visit the link provided [link no longer exists].
Deductions from salaries:
6316. The income chargeable under the head "Salaries" shall be computed after making the following deductions:
(i) 64[***]
(ii) A deduction in respect of any allowance in the nature of an entertainment allowance specifically granted by an employer to the assessee who is in receipt of a salary from the Government. This deduction is a sum equal to one-fifth of his salary (exclusive of any allowance, benefit, or other perquisite) or five thousand rupees, whichever is less.
(iii) A deduction of any sum paid by the assessee on account of a tax on employment within the meaning of clause (2) of article 27667 of the Constitution, leviable by or under any law.
(iv) 68[***]
(v) 69[***]
Thank you.