By which mode was it shipped? I've got couple of packages after the AliExpress ban.
Also, the packages doesn't have anything on it to identify it as AliExpress packages, so it wouldn't apt for Indiapost to block all packages from China. Also, most shipments get redirected to different countries and then get labelled as originating from countries other than China.
Products with tracking number are heavily scrutinized and take long long time to get through the customs. This is my experience when getting something shipped with FedEx from China. I am not sure what happens to those shipped with registered post.