I have not received TDS certificate from the deductor. Can I claim TDS in my Income-tax return?

Undoubtedly, Form 26AS will disclose the tax credit in this situation, so you can review it and make the appropriate tax credit entries. However, the TDS claim that must be submitted in your income tax return must strictly follow the TDS credit that is shown on Form 26AS. If there is a mismatch between the tax that was actually deducted and the tax credit that is represented in Form 26AS, you should notify the deductor and fix the problem. The income-tax department will issue the credit in accordance with Form 26AS.