Ailing veteran Communist Party of India-Marxist leader Harkishan Singh Surjeet's medical condition continues to be serious.
Ninety-two-year-old Surjeet was admitted to Metro Hospital in Noida with an acute respiratory problem and slipped into coma on May 17.
Prime Minister Manmohan Singh and UPA chairperson Sonia Gandhi visited the hospital on Sunday to inquire about his health.
CPI-M General Secretary Prakash Karat and politbureau member S Ramachandran Pillai also visited the hospital.
Video: iShare
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