Wagah Border trip, I don't remember the exact fare if it was 100 rs per person / 200 rs per person; it surely is not more than 200 rs per person.
It takes at-least one hour to reach Wagah border by car/bus. Don't hire auto to go to Wagah border.
Do not carry lot of luggage to Wagah border, as you will have to keep your stuff in road side vendor lockers. Only water, wallets, sunglasses, cameras are allowed.
Good Luck!!!