'US should stand with India': American lawmaker on China's alleged cyberattack leading to Mumbai blackout The Maharashtra govt has said that the massive blackout that paralysed Mumbai last year was caused by a suspected cyber-attack originating in China. File photo Updated: Mar 2, 2021, 02:03 PM IST As the needle of suspicion for last year's blackout in Mumbai comes on China, America has come in support of India. A US lawmaker has called on the Joe Biden administration to raise its voice against China and stand in support of India. In the past as well, the US has stood against China over its antics.