Based on the provided legal document, the key points are as follows:

1. The presumption under Section 139 of the Negotiable Instruments Act includes a rebuttable presumption that a legally enforceable debt or liability exists. It is open to the accused to raise a defense contesting the existence of such a debt or liability [judgement_subject][judgement_act_referred].

2. The evidence in the case primarily consisted of oral testimony regarding the lending of Rs.1,00,000/- to the accused, with no supporting documents such as receipts, acknowledgment of repayment, or declaration of the loan in income tax returns (!) (!) (!) .

3. Discrepancies in the dates related to the loan and cheque issuance, such as the date on the cheque versus the date mentioned in the oral testimony, cast doubt on the credibility of the complainant's version (!) (!) .

4. The complainant's capacity to lend such a large sum was questioned, given his income level, lack of documentation showing source of funds, and failure to declare the alleged loan in his income tax returns. These factors undermine the presumption of a legally recoverable debt (!) (!) (!) .

5. The accused successfully rebutted the presumption by cross-examination, demonstrating inconsistencies and raising doubts about the existence of the debt and the authenticity of the transaction (!) (!) (!) .

6. The first Appellate Court correctly reversed the trial Court's conviction, based on the assessment of evidence and the credibility of the oral testimony, and rightly held that the prosecution failed to prove the existence of a legally enforceable debt (!) (!) .

7. The appeal filed by the complainant was dismissed, and the judgment of acquittal was upheld, confirming that the evidence did not establish the accused's liability for issuance of a dishonored cheque in discharge of a legally recoverable debt (!) (!) .

8. Overall, the case underscores the importance of corroborative evidence and proper documentation when establishing the existence of a debt under the Negotiable Instruments Act, and highlights the presumption's rebuttable nature [judgement_subject] (!) (!) .

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