The health of 71-year-old Sister Superior of Convent of Jesus and Mary, who is under treatment at Ranaghat sub-divisional hospital, is improving, doctors said.
    
Nadia district superintendent of police Arnab Ghosh said the detentions were in addition to the ten detained till Monday but refused to give details.
    
A police team, he said, has been sent outside the state in connection with the incident.

CCTV footage had shown four persons who were allegedly involved in the crime. The SP had announced a reward of Rs 1 lakh to any individual providing credible information leading to the arrest of the accused.     

Ranaghat hospital superintendent A K Mondol said she is taking normal food, both solid and liquid. A medical board has been formed for her treatment and she is being provided counselling.
    
Her spiritual counselling by a Christian missionary from Rome is also on, Mondol said.

Chief Minister Mamata Banerjee had visited the 71-year-old nun at the hospital on Monday and said she believed that the culprits should be hanged.     

Meanwhile, traders observed a bandh in the area near the convent in protest against the incident and demanding immediate arrest of the culprits.

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