"Indian students in Russia are strongly advised to take adequate precautions themselves for their personal security, particularly during all their outdoor movements," the Indian embassy said in an advisory posted on its website.

The advisory comes in the wake of brutal murder of a medical student from Bihar in Russia's second largest city of St. Petersburg last month, sparking off angry protests.

Nitesh Kumar Singh, a sixth year Indian student from the Mechnikov Medical Academy in St. Petersburg, was fatally stabbed by a group of eight masked persons in front of his hostel building on September 24.

The embassy said that Indian diplomatic missions in Moscow and St. Petersburg have strongly taken up the issue of security for Indian students with the Russian authorities.

"There can be no substitute for remaining very vigilant and exercising due caution and prudence in one's movements," the advisory said. Earlier, in April, another Indian, a fifth year student from the same Medical Academy, Kishore Kumar Anjangi, was also attacked in the same area, but survived.

 Additionally, eleven foreign students from Africa, Asia and Latin America have also been attacked in the last one year in St. Petersburg and Voronezh.