अत

In a sentence

• अतः हमें समय का सदुपयोग करना चाहिए।

  Therefore, we should utilize time properly.

  In this sentence, the word 'अतः' is used as a conjunction to provide reasoning or conclusion for the statement.

• तुम्हारी कड़ी मेहनत देखकर अतः मुझे विश्वास है कि तुम अवश्य सफल होगे।

  Seeing your hard work, therefore I am confident that you will definitely succeed.

  Here, 'अतः' is used as a transitional word linking the observation to the conclusion.

• शिक्षक का कहना था कि अतः विद्यार्थियों को अधिक ध्यान देना चाहिए।

  The teacher said that, hence, students should pay more attention.

  In this context, 'अतः' is employed to derive a result or implication from the prior statement.