Russian entrepreneur Boris Rothenberg confirmed his participation in a project to build a residential and business area of Dushanbe International District at a cost of about $1.5 billion in Tajikistan's capital. "Here, in Dushanbe, I already say "to us", because I myself am a small part of this project (Dushanbe International District - IF)," said Rotenberg at a sports and concert event called "The Big Victory Event" in Dushanbe.