Lalu Yadav's RJD will contest half of Bihar's 40 seats in next month's national election and four other allies will share the rest, the opposition alliance announced on Friday. The Congress will contest nine seats. Sharad Yadav, a former leader of Bihar Chief Minister Nitish Kumar's Janata Dal United, will contest on the RJD (Rashtriya Janata Dal) symbol and merge his new party Loktantrik Janata Dal with it after the election.