According to the question,
Priti scored more than Rahul and Yamuna scored as much as Divya.
Priti > Rahul ; Yamuna = Divya
Lokita scored less than Manju and Rahul scored more than Yamuna
Lokita < Manju ; Rahul > Yamuna
Manju scores less than Divya.
Manju < Divya
∴ Priti > Rahul > Yamuna = Divya > Manju > Lokita
So, it is clear from the above arrangement, Lokita scored lowest among them.