Xiaomi India head Manu Kumar Jain just Tweeted that the Mi 10 series' Indian launch would be postponed. Both phones were supposed to be unveiled on March 31st via an online-only event. The delay is likely due to the nationwide lockdown put in place by the Indian government to combat the coronavirus epidemic.
https://www.notebookcheck.net/Xiaomi-Mi-10-Indian-launch-postponed-amid-nationwide-lockdown.458983.0.html