The Vastu Shashtra indicates us the most suitable place of study table in bedroom is at the middle of North and South West to West direction. If it is not possible than it keep at North East, South East and East direction.
The face of students while reading should be different direction for different purpose those are :
Direction ----- Purpose.
East ----- Religions books political and Social.
West ----- Mathematics and science.
North ----- I.A.S, M.B.A and administration
North North East ----- Medical and Ayurvedha.
North West ----- Retail/ chain and administration.