By using below link you can track your package,

USAhttps://tools.usps.com
UKhttps://www.parcelforce.com/track-trace
Australiahttps://auspost.com.au/track/
New Zealandhttps://www.nzpost.co.nz/tools/tracking
Russiahttps://www.pochta.ru/tracking
For ALL Countrieshttp://ipsweb.ptcmysore.gov.in/ipswebtracking/