patents as intellectual property, contributed to this world. as a new inventions has brought changes in society, because usefulness of patents are one of the important aspect for patentability. patents and TRIPs go hand in hand, as trade related aspects of of intellectual property rights has lead to change at international level. Evolution of intellectual property rights at international level and Indian patent Act and its amendments . amendment of Indian patent act and evolution and growth of pharmaceuticals in india. its implication on Indian patent act and with special reference to pharmaceutical industries and availability of medicines and accessibility of medicines which is part of right to life of all. right to health is fundamental right and human right. how the Indian constitution guarantees right to health.