In tweets, Modi also wished people on the start of Navratri.
Lalu Yadav's son and Bihar Deputy Chief Minister Tejashwi Yadav posted updates on the surgery on his Twitter handle.
If you experience any harassment or assault, dial 112 for police assistance, said Uttar Pradesh Police on Twitter.
The 58-year-old comedian suffered a heart attack while at the gym on Wednesday. He underwent angioplasty later in the day.
Vijayan took to Twitter to convey his birthday wishes and said that by standing in defence of federalism, secularism and our mother tongues, Stalin has won hearts across the country.
