The Code 2074's elements (the classical six, the Code's own design):
1. Agreement: offer and acceptance (the Code's formation rules — Unit 3);
2. Capacity: the parties competent (Section 506's design: every natural person prima facie competent — except minors (below 18), persons of unsound mind, and personsdisqualified by law — Unit 3's detail);
3. Free consent: no coercion, undue influence, fraud, misrepresentation (the Code's consent chapter — Unit 5);
4. Lawful object-and-consideration: nothing illegal, immoral or against public policy (Unit 5);
5. Certainty-and-possibility: the terms certain, the performance possible (Units 2 and 5);
6. Formalities where prescribed: the written-and-registered forms for the defined transactions (the Code's formality rules; the attestation practices — the ward-office attestation for the defined value-thresholds as the practice's rule of caution).
meaning-of-contract/no-consideration-no-contract annotation) vs. the Code 2074's design (consideration not enumerated as the contract's definitional element in the common-law style — the doctrinal shift; the Chitra Bahadur Karki case's principle applied in its era) — Unit 3's consideration section reconciles.