Govt Docs Director of Technical Education letter dated 26.11.99 Memo. No. 104spl. cell(TET) on Scope of Recruitment of Diploma Holders in Survey Engineering. Asstt. Sectary Gov. of W.B letter dated 6.4.95 regarding matter relating to Bandel Survey Institute. Geological Survey of India recruitment Qualification. Partha Chatterjee's (leader of opposition) on Alleged denial of status of Diploma Surveyors working in the state as Surveyor/Computer dted 28.07.2010. Letter of Asst Secterary of Govt of WB on enhancement of Pay of Surveyor dted 09.07.2009. Gazette Notification on Surveyor Recruitment of Geological Survey of India. Letter from the Principal of West Bengal Survey Institute to different organisation for amendment of recruitment qualification dated 01.12.2017.