Ahmedabad: The four Dalit victims of Una incident, who were discharged from Rajkot civil hospital on Wednesday after "improvement" in health condition, were admitted to the civil hospital here this evening after they developed "serious complications".

The four youths, Ashok Sarvaiya, Vashram Sarvaiya, Bechar Sarvaiya and Ramesh Servaiya all residents of Mota Samadhiyala village of Una taluka of Gir-Somnath district, were brutally thrashed by cow vigilantes at Una over two weeksago that led to large-scale protests across the state.

Rajkot civil hospital superintendent D Vatsraj had on Wednesday said that the youths were discharged as their condition had improved. However, their relatives rushed them to Ahmedabad civic hospital today after their condition became serious.

Read: Una incident: Four Dalit youths discharged from hospital

"After they reached their home last evening, some of them started vomiting, while others complained of severe body pain," Ahmedabad civil hospital superintendent M Prabhakar said, adding that all four of them have been admitted there.

Meanwhile, officials of CID-Crime have arrested four morepersons, allegedly involved in thrashing the Dalit youths, taking the total number of arrested in this case to 20.

"They were nabbed from Samper village of Una taluka early today morning," said Deputy SP of CID KG Saradava, who isheading the probe.

According to Prabhakar, some of the Dalit youthsdeveloped complications and started vomiting and complained of severe body pain. Their relatives brought them here.

"We admitted them and started treating them immediately. We found that two of them are severely ill, as foam was oozing out from their mouth. We will do everything possible to improve their condition," the superintendent said, adding that after some initial treatment, their condition is stable now.

On July 11, these Dalit youths were beaten up by cow vigilantes for allegedly skinning a dead cow. On July 14, they were referred to Rajkot civil hospital from Una for further treatment.

Meanwhile, several Dalit leaders as well as senior Congress leader Shankersinh Vaghela visited the hospital alleging that these youths were discharged from Rajkot hospital before they fully recovered.

"Although these Dalits were in serious condition, they were discharged from Rajkot hospital. This is matter of probeas to why the superintendent allowed them to go home and who has pressurised him to do so," president of 'Gujarat Dalit Panther' Chirag Rajvansh said.