Two Chinese nationals were arrested in Bihar after they entered India through Nepal without a visa and passport and were caught when taking photographs without permission, police said on Saturday.They were arrested in Raxaul in East Champaran district."A team of SSB officials arrested two Chinese nationals for taking photographs without permission," said Assistant Commander of Sashastra Seema Bal (SSB) Satish Chandra Gupta."We have recovered two mobile phones and one camera from them," he said.Immigration official S.M. Sharma said that preliminary investigation suggest that they were roaming for last two months near the India-Nepal border areas.