Correct Answer - Option 4 : Guna shekar
The logic follows here is :-
Lilly is taller than Guna shekar → (Lilly > Guna shekar).
Bobby is taller than Meena but shorter than Shekar → (Bobby > Meena) and (Bobby < Shekar).
Ravinder is taller than Raju but shorter than Kishore → (Ravinder > Raju) and (Ravinder < Kishore).
Meena is taller than Kishore but shorter than Bobby → (Meena > Kishore) and (Meena < Bobby).
Raju is taller than Lilly but shorter than Ravinder → (Raju > Lilly) and (Raju < Ravinder).
From the given question the order follows is :
Shekar > Bobby > Meena > Kishore > Ravinder > Raju > Lilly > Guna shekar.
Thus, the shortest person in given group is 'Guna shekar'.