Mobile internet and SMS will be snapped in 16 districts of Rajasthan for 12 hours today as the state holds an important exam to select teachers for government schools, the state government has said. The move is to prevent cheating in exams, officials have said. The highly competitive Rajasthan Eligibility Examination for Teachers or REET will see some 16 lakh students attempt the test for 31,000 posts in government schools.