A national programme launched over six years ago has today yielded a host of MEMS devices such as silicon-based pressure sensors, electronic chemical sensors, piezoelectric actuators, biochips and microsystems for molecular amplification in biology.
There have been other developments in nano science - a branch of science that deals with materials of sizes that are thousand times thinner than human hair. Scientists at the Indian Institute of Science, Bangalore, in 2003 showed that flow of fluids through carbon nanotubes generates electric current. That is, these nanotubes act as 'flow sensors'.
This has immediate and interesting application possibilities. You can imagine a coronary pacemaker without battery and powered by the body's own blood or a tiny implant that controls the blood flow of a heart-lung machine or as nanosensors in chemical and biological reactors where fluid flows have to be precisely controlled.
From India govt :
India is one of the top-ranking countries in the field of basic research. Indian Science has come to be regarded as one of the most powerful instruments of growth and development, especially in the emerging scenario and competitive economy. In the wake of the recent developments and the new demands that are being placed on the S&T system, it is necessary for us to embark on some major science projects which have relevance to national needs and which will also be relevant for tomorrow's technology. The Department of Science & Technology plays a pivotal role in promotion of science & technology in the country. The department has wide ranging activities ranging from promoting high end basic research and development of cutting edge technologies on one hand to service the technological requirements of the common man through development of appropriate skills and technologies on the other.