"We are taking this up with the German Embassy," Swaraj said, in response to an appeal for help on Twitter.
Holzer Dieter Siegeried was admitted to Kolkata's premier SSKM Hospital with a lung disease.
"He was admitted to the hospital by representatives of an NGO around seven days ago. He was discharged on Friday, but there was no one to take him back," said Manju Banerjee, Director of the Institute of Postgraduate Medical Education and Research at SSKM.
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