India will become its 42nd participating state as soon as the necessary procedural arrangements for joining are completed, the group said in a statement after its plenary meeting in Vienna on Thursday.
Ryabkov said Russian Federation has been "very straightforward" and "vocal" in supporting India in its endeavour of getting NSG membership because of the country's "impeccable and impressive record" in the area of non-proliferation.
Membership of the Wassenaar Arrangement is also expected to build up a strong case for India's entry into the Nuclear Suppliers Group - a 48-member group which controls the export of nuclear materials, equipment and technology.
The arrangement, which also plays a crucial role in transfers of conventional arms and dual-use goods and technologies, has not admitted China yet despite being a member of NSG.
"China supports the NSG to follow the principle of consensus through consultation through transparent and fair intergovernmental process to deal with this issue", Geng said.
India'a membership of the Wassenaar Arrangement on Export Controls for Conventional Arms and Dual-Use Goods and Technologies comes more than a year after becoming member of the Missile Technologies Control Regime (MTCR).
In June 2016, China had maintained that it opposes India's entry into the NSG, a group of nations seeking to prevent the proliferation of nuclear weapons by controlling access to sensitive technology. Membership in the group is by consensus.
"At the same time they will not sign the Comprehensive Safeguard Agreement (CSA) of the International Atomic Energy Agency (IAEA)" which is mandatory under the NPT, he said.
India's admission to the Arrangement is not predicated on this requirement; New Delhi has never signed the NPT and has sought to burnish its nonproliferation credentials through its behavior and policies since its nuclear breakout in 1998. "I keep my fingers crossed. then tomorrow we may see a decision of accepting India into the Wassenaar Arrangement, which is also very important export control regime", he said.
China suggested that the NSG can pool the wisdom and further explore on this issue and find a solution which can be accepted by all relevant parties and can uphold the global non-proliferation regime with NPT as a cornerstone.
The Russian deputy foreign minister said he had an extensive discussion with Foreign Secretary S Jaishankar on issues ranging from the volatile situation in the Korean Peninsula to India's bid for NSG membership. At the same time they will exchange views on worldwide issues of common concern.