The Survey & Land Records Department is being conducting 3months Lower (chain) survey Course for Government servants and private students. Under the supervision and administrative control of the Director of Survey and Land Records there are five permanent Chain Survey Schools at
(Presently training is being conducted at Thiruvananthapuram district only.)
A part from the above Government Survey Schools there are 14 private Chain Survey Schools
List of Private Chain Survey Schools
- Chain Survey School, Nemon, Santhivila, Nemom.P.O, Thiruvananthapuram District.
- Florence Memorial Institute of Chain Survey, Thirupuram, Pazhayakada, Thirupuram. P.O, Neyyattinkara, Thiruvananthapuram District.
- National Institute of Chain Survey, R.C. Church Compound, Plammoottukkada.P.O, (via) Amaravila, Neyyattinkara, Thiruvananthapuram District.
- P.R.S. Technical Training Institute and Attingal Chain Survey School, Near Post Office, Attingal, Thiruvananthapuram District.
- Chain Survey School Karuvatta, Thottappally.P.O, Alappuzha District.
- Chain Survey School, Thamarakudy, Poruvazhy.P.O, Bharanicavu, Kollam District.
- Central Engineering Institute and Chain Survey School, Mallappally, Pathanamthitta District.
- Instruction Center Chain Survey School, Thodupuzha East P.O, Idukki District.
- St. George Chain Survey School, Karingachira, Irumpanam.P.O, Thripunithura, Ernakulam District.
- St. Mary’s Chain Survey School, Pala, Kottayam District.
- Mar Baselios Chain Survey School, Kothamangalam, Ernakulam District
- Private Chain Survey School, Thrissur
- Chain Survey School, Near Indira Gandhi Stadium, Kunnathurmedu, Palakkad District.
- Chain Survey School, Thamarassery, Kozhikode District.
Normally there will four courses in the school during every year, each course lasting for three months. Application for admission to the school will be invited by the Director of Survey and Land Records, once in a year by a notification in the Gazette. The classes will commence from the first of November every year. Thirty fresh candidates will ordinarily be admitted for each class. Tuition fee will be levied from the trainees for their training. The final examination will be conducted by Officers entrusted by the Director of Survey and Land Records. The maximum marks for theory and practical are 100 each. The names of the successful candidates at the final examination shall be published and Certificates shall be issued to the candidates who succeeded in securing a pass in both the parts. Failed candidates will be allowed to attend the final examination of the subsequent courses without their undergoing further training, if they apply. Government servants selected for the class should produce copy of order sanctioning eligible leave for the entire period of training obtained from the head of the office concerned at the time of admission. Request for change of course will not e considered under any circumstances.
The Thiruvananthapuram School is operating at the office of the Survey Mapping Assistant Director, Ambalamukku. Courses are being conducted y a First Grade Surveyor under the supervision of a Nodal Officer holding the post of Survey Superintendent.
The selected candidates should pay the tuition fee of Rs.790/- and security deposit of Rs.160/-(total-Rs.950/-) prescribed for the course into the treasury on Chalan receipts countersigned by the Assistant Director of Survey concerned or Instructor of the Survey School. The Scheduled Castes/Scheduled Tribes candidates are exempted from payment of Tuition Fee and security deposit.
The syllabus of the Chain Survey course
- Simple proportion, squares of numbers, square roots, Decimals, properties of triangles and quadrilaterals, Circles, radius and diameter.
- Area of geometrical figures, triangles and quadrilaterals and irregular fields.
- Construction of scales- simple, diagonal and vernier.
- Field work:-
- Construction and use of the equipment in Chain Survey, such as chain, cross-staff, offset poles
- Testing the accuracy of the chain and cross-staff.
- Ascertaining correct results with the aid of incorrect chain and cross-staff. Measurement of lines. Recording of measurements. Measurements along slopping ground by stepping. Obstructed lines both invisible and inaccessible. Surveying small fields and preparation of sketches.
- Construction of different area square-papers and converting the area computed by different area square-papers and computing scales from plot on different scales.
- Ascertaining measurements of lines obstructed by tank-bed, prickly pear, houses, etc., by constructing rectangles, right angles, triangles, trapezoids, similar triangles with chain only and similar triangles within right-angled triangles.
- Finding measurements between points on opposite banks of an unaffordable river from one bank by constructing equal right-angled triangles and similar triangles.
- Fixing the length of a line between two points on the banks of an unaffordable river from the other bank by constructing equal right angled triangles. Measurements of offsets on the obstructed lines and also of obstructed offset lines.
- Calculation of chain and offset lines on an obstructed line from those measured from another line. Measurement of fields containing two town subdivisions in them.
- Measurement of narrow fields both in the triangle and offset system and also in the base line system and the advantage of the latter over the former method.
- Preparation of eye-sketches:- Sketches in the rough note-book and also recording of important features and topographical details seen in the field in the rough notebook
- Explanation of methods for fixing the missing survey marks on the survey boundaries, creating new subdivisions within surveyed blocks to the given areas.
- Survey of a block of 40 acres of land containing several survey fields each field containing a number of subdivisions, running of purtal lines and offsetting of all the nearest junction points.
- Plotting of survey-fields to prescribed scales and preparation of plotted sketches, preparation of demarcation sketches on scale 1/2000 and map on scale 1/5000 with the aid of the purtal lines and offsets records and also plotted sketches of the survey fields.
- Finding area with area square paper and computing scales both from the plotted sketches and from the group sketch.
- Comparison of area as per the above two results and adjustments.
- Explanations of the several provisions of the Kerala Survey and Boundaries Act, 1961 (act 37 of 1961), the L.R.M. rules and also the duties of various officers under the rules. Explanation on the different methods of survey such as Khasra, Base line and offset system, Tak system and triangles and offset system. Explanation of the correction of measurements in the records where errors are recovered