Google has announced the new devices a day ahead of rival Apple, which is hosting a conference on October 16. Reports suggest that the Cupertino-based firm could unveil its latest iPad.
The Nexus 6 smartphone has been developed by Motorola and will be available for pre-order in late October and in stores in November.
Nexus 9 tablet has been developed by HTC and will be available for pre-order on October 17 and in stores starting November 3.
According to sources, both the devices would be available in India in the month of November itself, in line with the global launch.
Apple, too, has launched its latest iPhone 6 and iPhone 6 Plus in India within a month of its global launch to cash in on the multi-billion smart devices market here.
According to IDC, India is the fastest growing smartphone market in the world with over 44 million devices being sold last year alone.
Last month, Google had launched its first set of Android One smartphones here. India was the first country of launch for the affordable Android One smartphones in partnership with handset makers Spice, Micromax and Karbonn.
Google had indicated that many more firsts could come from India in the days to come.
"Advances in computing are driven at the intersection of hardware and software. That's why we've always introduced Nexus devices alongside our platform releases.
"Rather than creating software in the abstract, we work with hardware partners to build Nexus devices to help push the boundaries of what's possible," Google SVP Android, Chrome and Apps Sundar Pichai said in a blogpost.