Question $7$: G $($Gauridutt$)$ sent his servant L $($Lalman$)$ to trace his missing nephew. He then announced that anybody who traced his nephew would be entitled to a certain reward. L traced the boy in ignorance of this announcement. Subsequently when he came to know of the reward, he claimed it$.$ Decide on the basis of the Indian Contract Act, $1872$ whether the contention of L is valid?