Business, Money and evil baniya.. aahhha ... do you think something more is required for the cocktail ?
Figure out, where most of the Russian population lives, and what would be the distance and altitude goods need to pass through to come via China cross the Himalayan heights if someone needs to send it from west Russia through China and then to Gawadar.. Second route, Via Kazakistan, Turkmenistan - Afghanistan and then to Pakistan(Gawadar) how much the security concern geo political instability and above all the insurance premium and transition cost for the logistics will rise.
Binya and Bear states best route is to come via Azerbaijan to Iran (Chabahar) or Kazakistan, Turkmenistan, Iran(Chabahar).
Pakistan wants to blackmail India on trade routes, India gonna blackmail Pakistan on Water... and the tussle will continue..... lets see who blinks first....