1. Core Legal Answer & Context: Joint tortfeasors are two or more persons who are responsible for the same tort. Their liability arises when they act in furtherance of a common design, or when one is vicariously liable for the acts of another (e.g., employer-employee), or when they owe a common duty which they both breach. The key characteristic is that their acts, though possibly distinct, contribute to the same damage and are linked by a common purpose or legal relationship. They are jointly and severally liable, meaning the injured party can sue any one of them for the full amount of damages, or all of them together. The plaintiff is entitled to only one full satisfaction, but can pursue each tortfeasor until that satisfaction is achieved.

Independent tortfeasors, on the other hand, are persons whose separate and distinct wrongful acts cause either different damages or the same damage but without any common design, concert, or legal relationship between them. Each independent tortfeasor is liable only for the damage caused by their own act. If their independent acts cause the same damage, the court may apportion liability, or if apportionment is impossible, they may still be held severally liable for the entire damage, but the underlying principle is the independence of their actions.

2. Relevant Statutes and Sections: In India, the principles of joint and independent tortfeasors are largely governed by common law and judicial precedents, rather than specific statutory provisions. The Indian Contract Act, 1872, Section 43, deals with joint promises and their liability, which can be analogously applied in some tortious contexts, but it's not directly for torts.

3. Important Landmark Cases:

• The Koursk [1924] P. 140 (English Case): This case is often cited to distinguish between joint and independent tortfeasors. It established that for tortfeasors to be 'joint', there must be a common action, common design, or a relationship that makes one responsible for the other's acts. Two ships colliding independently with a third ship were held to be independent tortfeasors, even if their acts contributed to the same damage.
• Salmond on Torts: The classic definition provided by Salmond states that persons are joint tortfeasors if they are responsible for the same tort, which can arise from agency, vicarious liability, or common action.

4. Clear Conclusion: The fundamental distinction lies in the unity of action or legal relationship. Joint tortfeasors share a common responsibility for the same tort, leading to joint and several liability. Independent tortfeasors act separately, and their liability is typically several, even if their acts result in similar or indivisible damage, unless a specific legal principle dictates otherwise. The concept of contribution among tortfeasors allows a tortfeasor who has paid more than their share to recover from others.