EN
Atomic lifetimes and energy levels were calculated using weakest bound potential model theory for 5 s^2 ns ^2 S_{1/2} (n ≥ 6), 5 s^2 np ^2 P^0_{1/2} (n ≥ 5), 5 s^2 np ^2 P^0_{3/2} (n ≥ 5), 5 s^2 nd ^2 D^0_{3/2} (n ≥ 5), 5 s^2 nd ^2 D^0_{5/2} (n ≥ 5) series of the Rydberg states in neutral indium. The use of the quantum defect method and Martin's expression allowed us to supply lifetime values along by means of the series above. Some lifetimes and energy values not existing in the literature for high Rydberg states in neutral indium atom were obtained using this method. Our results nicely agree with the available experimental results and theoretical results.