The "Tanu Weds Manu Returns" star said she was extremely lazy and hated taking baths.
"I was really lazy, and hated taking a shower. My parents were fed up. Honestly, nothing good ever happened in my life during that phase. I didn't make friends, no opportunities came my way," Kangana told reporters.
"Then I read a lot about elements, composition and energies. I got to know that energies are of three types, one of them being cleanliness which is the most superior type. It is the truth."
Kangana features in the movie as Goddess Laxmi.
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The "Queen" actress said her life changed after she adopted these techniques.
"I studied Vedanta, followed Swami Vivekananda. I learnt how can I uplift myself, uplift energies and make changes. Like, it has various factors, external and internal cleanliness.
"I started with external cleanliness... It is a basic exercise. When I started adopting that, things starred changing in life. Now, I take shower, stay clean and make sure I don't litter. I haven't littered for the past 12 years."