If preparing from home, all the coaching related notes and material can be found at the following links. Hope it helps out of delhi aspirants 🙂
Few of the links are given below.
http://notesduniya.com/product/item/zoology-optional-by-evolution-for-ias-and-ifos
http://notesduniya.com/product/item/psychology-class-notes-mukul-pathak-vajiram-and-ravi
http://notesduniya.com/product/item/printed-notes-of-commerce-by-rankers-coaching