(Top) World's fastest supercomputer, SunwayTaihuLight from China and (bottom) India's fastest, a Cray XC40 at the IISc, Bangalore
Only 4 India-based supercomputers in global Top500 list, and none of them 'Made in India'

Bangalore June 24 2017: The only indigenous super computer in India -- the Param Yuva II at the Centre for Development of Advanced Computing (CDAC) Pune,  assembled by NetWeb Technologies,  is out of the world's Top500 ranking of fastest computers. 
In November last, it  scraped into the list at no. 447 with its   maximum speed of 388.4 tera flops. Now in the new, June 2017 list, the  datum for fastest 500 systems worldwide,  has shifted to 430 tera flops  and only four India-based systems  remain -- all of them of foreign manufacture. Their relative ranks and speeds remain unchanged though their rankings have changed.
The fastest Indian supercomputer remains the  Cray XC40 system at the Supercomputing Education and Research Centre( SERC) of the Indian Institute of Science Bangalore. Its speed of 901.5 teraflops gives it a rank of 165 in the June 2017 Top500.
Next in India is  the IBM  DataPlex DX360M4 at the Indian Institute of Tropical Meteorology, Pune,   ranked no  260  with 719.2 T/flops.
Another Cray, an XC30  of the Tata Institute of Fundamental Research ( TIFR) positioned in Hyderabad for the Indian Lattice Gauge Theory Initiative, clocked 558.8 T/flops to attain a ranking of 355; while the final India-based supercomputer,  an Apollo 6000 from Hewlett Packard (HPE), at the Indian Institute of Technology (IIT) Delhi  is ranked 391 with a maximum speed of 524.4 T/flops.
Other Indian efforts at creating an Indian supercomputer -- at the Institute of Mathematical Sciences Chennai (IMSC) and at what was Tata Sons'  Computational Research Lab (CRL) Pune -- are no longer in contention.
It remains to be seen whether the Indian government's  Rs 45 billion  National SuperComputing Mission which has been   proceeding at snail's pace since it was first mooted in 2012, will eventually deliver on the promise to create an indigenous petaflop platform.
Global scene: Fastest computer clocks 93 petaflops

The Sunway TaihuLight, a system developed by China’s National Research Center of Parallel Computer Engineering & Technology (NRCPC) and installed at the National Supercomputing Center in Wuxi, maintains its top position in the June 2017 Top500 ranking. With a performance of 93 petaflops ( 93014 teraflops) , TaihuLight is far and away the most powerful number-cruncher on the planet.
Tianhe-2, (Milky Way-2), a system developed by China’s National University of Defense Technology (NUDT) and deployed at the National Supercomputer Center in Guangzho, China, occupies the number two position with 33.9 petaflops.  
The new number three supercomputer is the upgraded Piz Daint, a Cray XC50 system installed at the Swiss National Supercomputing Centre (CSCS). The upgrade was accomplished with additional NVIDIA Tesla P100 GPUs which makes it the fastest   Graphical processor-powered  computer at 19.6 petaflops.
For the second time in the 24-year history of the TOP500 list the United States has failed to secure any of the top three positions (three Japanese computers took the top honours in 1996).