NEW DELHI: Cloud and Artificial Intelligence (AI) are set to become the bedrocks of communications infrastructure, with both having the potential to grow manifold in the coming years, Akash Ambani , director at Reliance Jio Infocomm, said on Friday.“India’s public cloud market is estimated to be $2.6 billion in 2018, and over $4 billion by 2020,” Ambani said at the India Digital Open Summit in Mumbai.Research firm Gartner Inc had estimated the public cloud services market in India at $1.81 billion in 2017. Public cloud uses cloud computing technologies to support customers that are external to the provider's organisation.Using public cloud services generates the types of economies of scale and sharing of resources that can reduce costs and increase choices of technologies, Gartner said.Making his first solo appearance at a public event, Akash, the elder son of billionaire Mukesh Ambani, also spoke about open source, blockchain and OpenStack. Ambani said open source was very important for Jio, which is participating in many projects including ONAP.The Open Network Automation Platform (ONAP) is an open source networking automation standard. Stating that the Open Source community helps drive the technology progression for areas of interest globally, Ambani said AI is becoming mainstream for all. AI projects have leveraged Open Source to enable continuous innovation, he said, adding that along with broadband, one of the key technology enabling infrastructures is Cloud.