The question asks for the thinnest person. Therefore, let us arrange the persons in the decreasing order of their weight. Eswar is not as fat as Debu. Therefore, Debu > Eswar. Anil is fatter than Debu but not as fat as Bibek.Bibek > Anil > Debu > Eswar. Eswar is thinner than Charu, who is thinner than Debu Bibek > Anil > Debu > Charu > Eswar. Therefore, Eswar is the thinnest among the five persons and hence, option D is the right answer.