The Lahaul-Spiti district of Himachal Pradesh has decided to implement the ‘odd and even’ system on the Manali-Leh highway from Monday. This comes after regular reports of traffic jams on the Manali-Koksar road after the Rohtang Pass was opened. On odd dates, vehicles would be allowed from Manali towards Lahaul-Spiti, while it will be the reverse on even dates.