Vasishta started walking positioning his back towards the sun. After sometime, Vasishta turned left, then turned right, and then towards left again. Which is the direction Vasishta is going now ?

Let us assume that vashista is walking in morning

so, sun would be in east

positioning back to sun means he was walking towards west

from there he turned left, then turned right, and then towards left again. so he is now walking towards south.

Let us now assume that he is walking in evening.

so, sun will be on west side.

positioning back to sun means he was walking towards east.

from there he turned left, then turned right, and then towards left again. so he is now walking towards North.

Therefore the answer is north or south.

Hence answer is option D