Political parties can now nominate candidates after the delimitation panel divided the country's districts.
In the next four to five years, about 60,000 Bhutanese refugees are expected to be resettled in the US.
Bhutan has warned Govt officials of termination of service if found either supporting or criticising political parties in the run-up to polls.
India will post 3,000 more securitymen along its border with Bhutan to plug security gaps.
With a year to go before the tiny Bhutan kingdom is transformed into a democracy, officials have complained of a lack of interest.
The constitution will replace a royal decree of 1953 giving the monarch absolute power.
The dummy run, to be staged on April 21 and May 28, is meant to familiarise voters, officials with procedures ahead of the real vote.
India will offer an assistance of Rs. 26.10 billion to neighbouring Bhutan during the fiscal 2007-08.
Bhutan advocated a well-coordinated approach to tackle terrorism, drug trafficking and the spread of HIV/AIDS at the SAARC Summit.
Company officials say the workers are demanding increase in their wages.
MPs in Bhutan will draw a monthly salary of Rs. 30,000, besides a chauffeur-driven car and retirement benefits.
The UN refugee agency will begin the out-camp census of Bhutanese refugees residing in Nepal from April 20.
Mock polls will be conducted in all the 47 National Assembly constituencies and 869 polling stations with an estimated 1,000 voters identified in each polling booth.
The Himalayan kingdom of Bhutan creates history with its citizens voting for the first time in a mock parliamentary polls, an exercise carried out as a dress rehearsal for the election scheduled for 2008.
Security has been stepped up in Bhutan after a bomb allegedly planted by detractors of the monarchy was found near Phuentsholing.