An air pollution sensor has been developed by the scientists at the Indian Institute of Technology which they claim costs much less than similar instruments worldwide.The level of harmful gases, including ozone and nitrogen oxides can be measure by the sensor. Sensor of this caliber costs usually around Rs. 1-2 crore in the international market, but the scientists at IIT-Kanpur have made it in just Rs. 50,000. In the month of the June, testing of the sensor will be done and if it passes the test, then the sensors will be installed in 150 cities of the country.At IIT-Kanpur campusthe first 25 sensors will be installed, while 15 sensors will be installed at IIT-Bombay.After the testing of data, 50-60 sensors will be installed in Varanasi.He said the success was gained in developing a reliable and cheaper monitoring sensor under an India-US project.The Union government's Department of Science and Technology has contributed Rs. 6 crore for the project.During a press conference, the institute's dean research and alumni professor, B V Fadi, said the continuous increase in the level of pollution in the country is a cause for concern."So everyone has decided that they will work together to decrease pollution”.1.60 lakh people died worldwide last year due to pollution and the death rate is increasing.IIT-K alumni association president Pradeep Bhargava claimed that in the next phase of the project, countries like Singapore, Japan, China and the UAE will also be included.He said former students of the institute living in these countries will work on the project.