In India, any invention that meets the criteria of novelty, non-obviousness, and industrial applicability can be patented. The Indian Patent Act, 1970, defines an invention as "a new product or process involving an inventive step and capable of industrial application." The following types of inventions are eligible for patent protection in India: Product inventions: Any new and useful product, including machines, devices, compositions of matter, chemicals, and pharmaceuticals, can be patented in India. Process inventions: Any new and useful process, including methods of manufacturing, producing, or improving products, can be patented in India. Software-related inventions: In India, software can be patented if it meets the criteria of novelty, non-obviousness, and industrial applicability. However, computer programs per se and algorithms cannot be patented. Business method inventions: In India, methods of doing business, including financial or trading methods, can be patented if they meet the criteria of novelty, non-obviousness, and industrial applicability. Biotech inventions: In India, biotechnological inventions, including gene sequences, proteins, and other biological molecules, can be patented if they meet the criteria of novelty, non-obviousness, and industrial applicability. It's important to note that certain types of inventions, such as scientific theories, mathematical methods, and mere discoveries, cannot be patented in India.