Prime Minister Narendra Modi's younger brother Prahlad Modi underwent dialysis at the district combined hospital in Sanjay Nagar.
Hospital officials said it was a routine procedure as he requires dialysis twice a week.
He came to the hospital in the morning as an ordinary patient without any protocol and official programme, but security arrangements were made at the facility for him, they said.
Chief Medical Superintendent (CMS) Vinod Chand Pandey told PTI Prahlad Modi was successfully administered blood dialysis.
On Wednesday, he stayed at his friend's house in Pratap Vihar and met Ghaziabad ADM (city) Gambhir Singh who is a distant relative of the family.
Some traders and industrialists also welcomed Modi on Wednesday.
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