It has been surpassed by the Pratyush supercomputer[1] with a maximum theoretical speed of 4.0 PetaFlops.
Located at the Satish Dhawan Supercomputing Facility at Vikram Sarabhai Space Centre (VSSC), Thiruvananthapuram,[2] it was built using commercially available hardware, open source software components and in house developments.
The system uses 400 NVIDIA Tesla C2070 GPUs and 400 Intel Quad Core Xeon CPUs supplied by WIPRO.
[1] The system is being used by scientists to solve complex aeronautical problems.
It has been hinted that it will be used to design future space launch vehicles.