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

1. The appellant, Mohinder Singh, was initially acquitted of charges under Section 15 of the NDPS Act by the trial court. The High Court reversed this acquittal, leading to a conviction and a sentence of rigorous imprisonment for 10 years and a fine.

2. The State challenged the appellant’s acquittal selectively, without challenging the acquittal of the co-accused, Binder Singh. This selective action by the State was viewed as inappropriate and inconsistent with principles of fair conduct.

3. The conviction was found to be based on a defective investigation, notably lacking investigation into the origin and destination of the contraband and failing to proceed under the relevant provisions for confiscation of the truck. The only independent witness was disbelieved, further undermining the evidence.

4. The NDPS Act is a presumptive legislation, which requires strict interpretation of its provisions. In this case, the defective investigation and the selective challenge to the acquittal warranted a reconsideration of the case.

5. The Court emphasized that the interest of justice necessitated restoring the original order of acquittal passed by the Sessions Judge, especially given the issues with investigation and the State’s selective approach.

6. Consequently, the appeal was allowed, the conviction was set aside, and the appellant was acquitted and released, with his bail bonds discharged.

These points reflect the Court’s stance on the importance of fair and non-selective prosecution, thorough investigation, and strict interpretation of the legislation.