Patna: The state intelligence agency has directed all superintendents of police in districts along the India-Nepal border for close surveillance following the recent visit of two Pakistani nationals to Nepal.

A special branch officer in the rank of superintendent of police wrote letters to the SPs on May 18, explaining why Pakistan citizens Mohammad Shamshi Hussain Rahmani and Mohammad Ravi Auwal Rahmani visited Nepal.

The two are alleged to be working for Pakistan's intelligence agency ISI, and were on a 20-day tour to Nepal. There, according to intelligence inputs, they held meetings with different Islamic bodies.

According to the letter, a copy of which is with The Telegraph, the duo met Mohammad Jahangir Alam, president of Islami Sangh, at Mohli in Saptari district. At least 25 representatives of different Islamic groups were also there.

Both Shamshi Hussan and Ravi Auwal trained some representatives of the groups and entrusted them the task to fan anti-India activities, the police said.

"Among other things, the two Pakistan citizens discussed issues related to Indian security and told the Nepalese representatives to raise objections over any assistance given to Nepal citizen by the government of India," the letter says. " A fresh strategy to circulate Indian fake currency notes both in Nepal and Indian territory was also discussed."

The letter has been forwarded to the state home department.