Dear sir,You can down load
Various books on Indian spiritualty
From following link
https://cvnmurthyindianspirituality.blogspot.com/
SRI VIDYA
Tantra sastra
UPANISHADS
VEDAS IN TELUGU SCRIPT
VIPASANA
VIVEKANANDA
AYURVEDA BOOKS IN TELUGU SCRIPT
AYURVEDA BOOKS IN ENGLISH
BHAGAVADGEETHA
BHUDDA TEACHINGS
BKS IYANGAR YOGA
BOOKS BY DAVID FRAWLEY
DHYANA DHARA MAGAZINES
HATA YOGA
INDIAN MYTHOLOGYISHA YOGA
ISLAM
JIDDU KRISHNA MURTHY PHILOSOSPHY
MANTHENA FOODS
OTHER YOGA
PATHNJALI YOGA SUTHRAS
PURANAS
PYRAMID MASTERS
RAJANISH/OSHO