Two papers from the group of Sangiliandi Gurunathan have been retracted (so far_ due to image manipulatioin [falsification]. The retraction notice is also unusual because it flagged six other papers from the same group with a similar offence; it's only a matter of time before those too are retracted.
In his e-mail to Retraction Watch, Gurunathan tried to pin the blame on his students.
Krishna Pillai has been following up on this case by writing to SSV and Gurunathan's institution -- Kalasalingam University. He reports in his blog that KU has taken swift action by sacking Gurunathan and six of his students [see the press release].