Jammu and Kashmir has made all preparations to stop the Bharatiya Janata Party activists from entering the state, highly placed official sources said here.

The marchers, who started from Kolkata on January 12 for Srinagar to hoist the national tricolor in the city's Lal Chowk on January 26, will be stopped at Lakhanpur, the entry point of the state, about 90 km from Jammu.