ERRATA
Apropos "Heavy-duty pressure" (16-31 May. 2018) the article quotes Sumant kumar as the director of Delhi-based Petroleum Conservation Reasearch Association (PCRA). He is, in fact, the former directory of PCRA. We regret the error.
Apropos "Heavy-duty pressure" (16-31 May. 2018) the article quotes Sumant kumar as the director of Delhi-based Petroleum Conservation Reasearch Association (PCRA). He is, in fact, the former directory of PCRA. We regret the error.