Annual Report 2001 - 2002
Survey of India
Survey of India, the Surveying and Mapping Organisation
of Govt. of India bears a special responsibility to ensure
that the country's domain is explored and mapped suitably
to provide vast variety of maps for expeditious and integrated
development, security and prosperity of the country now and
for generations to come. Besides, it has also been carrying
out Geodetic & Geophysical Surveys and allied research
work in the areas of tidal; gravity, geomagnetic and project
surveys for tunnel alignment, crystal movement and dam deformation
studies etc. Some of the significant activities during the
period under report are as under:
Technology Development Projects
- Collection of tidal data and maintenance of modem tide
gauges commissioned under DST and DOD assisted programmes
- The proposal of Survey of India for introduction of dual
series of maps has been accepted. As per the proposal a
new series of maps on WGS-84 datum is to be brought out
and maps thus prepared in analogue and digital form will
be free from the restriction and would be freely available
to all users.
- A Task Force chaired by the Surveyor General of India
has released a Vision and Strategy document on the establishment
of National Spatial Data Infrastructure. The document has
been endorsed by all present in the International Workshop
on NSDI held in New Delhi in Feb 2001. Survey of India with
other sister organisations plans to assume the leadership
Basic Research Projects
Geodetic and Geophysical
- Data generation and its processing for redefinition of
Indian Geodetic Datum.
- Adjustment of Second Level Net of India to refine vertical
- Geodetic and Geophysical (including repetitive) measurements
using Global Positioning System and other sophisticated
instrumentation for the study of seismicity and seismotectonics
in earthquake prone area and analysis of results.
- Analysis of Tidal Data for updating the Tidal Constituents
for using these for improvement in prediction of Tides.
- Maintenance of National Tidal Data Centre and receiving/
processing of tidal data of various ports is continued.
- Indigenous production of Photo opaque as an import substitute
item for touching of film negatives is continued for supply
to various Survey of India Directorates/ Reproduction units.
The production of touch-up fluid again an import substitute
item, required to correct scribed originals is continued
in R&D directorate for using within the department
Technology Demonstration Projects Undertaken
in the area of Socio-Economic Development
District Planning Map Series
A project on preparation of district planning
maps containing thematic information is continued. Under this
prograrnme maps of 152 districts have so far been printed
by Survey of India. 41 maps are under printing and 63 maps
are in process at various stages. Districts planning maps
for remaining half of the districts are being processed by
National Atlas and Thematic Mapping Organisation (NATMO).These
maps are being utilised by the Government, non-government
organisations and private agencies in various development
Geodetic and Geophysical surveys
- Geodetic surveys for monitoring of tunnel alignment and
other structures such as Dam, Power House Complex etc. for
Tala Hydroelectric Project in Bhutan are in progress.
- Gravity and Geomagnetic observations across the country
for various scientific studies are continued. During the
year, the Geodetic and Research Branch (G&RB) is committed
to carry out the following tasks as departmental commitment.
GPS Observations -120 stations
Precision Levelling -2400 lin km.
EDM Traverse -105 lin km.
Gravity Observation -200 stations
Geomagnetic Observations -32 repeat and 45 profile stations
During the period under report the following
tasks are committed for topographical mapping and related
- Control Work
Topo Triangulation 11,400
Aerial Triangulation 46,500 sq.
Photogrammetric Surveys on various scales 78,500
Ground Surveys on various scales 89,900
Verification Survey on 1:250,000 scale for 4,36,000
Compilation of IAF Maps and Charts
- Fair Mapping
Repetitive Geodetic & Geophysical Surveys
viz. GPS observations, Gravimetric observations and Geomagnetic
observations were continued for crustal movement studies in
the states of Himachal Pradesh, Uttar Pradesh and Latur area
of Maharashtra to generate data and analyse results for the
study of seismicity and scismotectonic activities in earth-quake
prone areas. GPS, High Precision Levelling, Gravimetric and
Geomagnetic measurements have also been carried out in earthquake
effected area of Gujarat for post earthquake studies.
Digital Mapping Centres have developed several
application softwares to create DCDBs for value added digital
A team of two officers from Survey of India
participated in the 20th Indian Scientific Expedition to Antarctica.
The team carded out verification and revision of map of Maitri
and surrounding area on 1:5,000 scale and densification of
network of control points in the south of the area surveyed
during 19th expedition. The team also carried out rigorous
detail survey with one metre vertical interval on,1,:1000
scale in the proposed area west of Indian Station Maitri.
Two officers from Survey of India are participating
in the 21st Antarctica Expedition.
Any Other Information of Interest
Demarcation, Relocation and Construction of
boundary pillars and preparation of Strip-Maps of Indo-Bangladesh,
Indo-Myanmar, Indo-Nepal and Indo-Pakistan boundaries remained
in progress during the year.
Surveys on 1:25 K scale are being taken up on
selective basis according to the priorities indicated by the
Central/ State Governments and other user communities.
Most of the maps on the primary scale of 1:50,K
covering the entire country have been printed. Revision surveys
for updating these maps is in progress.
Maps on 1:250 K scale covering the entire country
have been published and updation of maps is in progress.
Compilation of various Geographical maps, State
maps, Guide maps etc. are being continuously carried out.
Also surveys and mapping pertaining to various developmental
schemes and projects of national importance are being executed.
Digitization of 363 maps out of 394 maps on
1:250 K scale has been completed. Digitisation of 298 maps
on 1:50 K and 175 maps on 1:25 K scale has also been completed
Other than the regular publication of the topographical
maps on various scales and Geographical maps etc. the following
publications were also brought out:
Magnetic Bulletin of Sabhawala Magnetic Observatory
Indian Tide Tables - 2001.
Hugli River Tide Tables - 2001.
THB Chapter X- Map Reproduction (Eighth Edn.) Bilingual.
- Human Resource Development and Training
Various courses connected with surveying and
mapping, digital cartography and special course on GPS Technology
were continued at the Survey Training Institute, Hyderabad.
Officers/ trainees from the department, other govt/ non govt.
organisations and foreign nationals are undergoing training
in the Survey Training Institute.
A team of 3 officers visited Belgium during
April 2001 for 3 weeks training in hardware/ software in connection
with Barco Map Publishing System already procured by Survey
A team of 4 officers visited Heidelberg,
Germany in March 2001 for on job training for one week in connection
with 5 colour Heidelberg Printing Machine already procured by
Survey of India.