A day after he was discharged, Samajwadi patriarch Mulayam Singh Yadav was admitted back into the Medanta hospital, late on Sunday night, after he complained of stomach pain.

This is the second time in the past five days that Mulayam had to be hospitalised. Earlier, he was admitted to the hospital on Wednesday and discharged on Saturday, news agency IANS reported.

He was said to be suffering from chronic constipation and had undergone colonoscopy.

"There is swelling in his intestines but he is stable and should recover soon. Gastro-surgeon is monitoring his health," said Dr Rakesh Kapoor, director of the Medanta hospital.