The upgrades to Indian MiG-29s will be to the MiG-29UPG standard. This version is similar to the SMT variant but differs by having a foreign-made avionics suite. The upgrade to latest MiG-29UPG standard is in process, which will include latest avionics, Zhuk-ME Radar, engine, weapon control systems, enhancing multirole capabilities by many-fold. As of 2012, Indian UPG version is the most advanced MiG-29 variant. The Director-General of MiG, Sergei Korotkov said, "The most advanced is the MiG-29UPG, implemented in India in collaboration with local industry". The first three aircraft were delivered in December 2012, over two years behind schedule.