SRINAGAR- Indian authorities have clamped down on separatists leaders in the valley and placed them under house arrest ahead of Prime Minister Narendra Modi's visit to Kashmir. Moderate Hurriyat chairman Mirwaiz Umar Farooq was placed under house detention in the morning fearing that he was planning an anti-Modi rally in downtown Srinagar. "A huge posse of police and paramilitary was deployed at the Nigeen residence of senior Hurriyat leader and he was asked not to venture out of his home," said Hurriyat spokesman Shahidul Islam. Hardline Hurriyat chairman Syed Ali Geelani was placed under house arrest since Wednesday evening. Around 10 pm, police men in strength were deployed outside his residence at Hyderpora. JKLF chief Yasin Malik is also asked not to venture out of his house. Separatists have called for a shutdown against Modi's visit to Kashmir. While Geelani described it as "cultural aggression", Malik accused him of playing politics over flood tragedy. Meanwhile, Srinagar wore a deserted look ahead of the Prime Minister's visit. Shops and business centers remained closed and there was thin traffic on the roads. Security has been beefed up in politically sensitive localities.