Box MS-023 Box 2

single photograph of what seems like a Hydrophone Reciever.

Photos include that of S.S. Mahindra - the first seismic vessel used to carry out seismic surveys in Gulf of Cambay in 1963.

Contains 3 blw photographs of the Mahendra ONGC trials at Karwan.

Includes 34 photos taken at an event and photos of Balakrishnan in his office.

Contains coloured photographs from his office desk.

Contains 6 photographs of him receiving an award at the 3rd Conference & Exposition on Petroleum Geophysics.

Contains 2 b/w photographs from an office.

Contains 5 b/w photographs from the field.

Contains 19 small blw photographs from Hyderabad

Includes a photo autographed by Raman along with negatives.

Contains 1 small blw photograph from Seringapatanam

single coloured photograph of Balakrishnan in Singapore

Photo from Balakrishnan's time in the US spent studying methods of oil exploration

Printed map with drawings over the area off the western coastline; Scale- 1:500000, affiliated with the Geological Survey of India.

Contains a printed map and a blueprint with notes and markings.

Contains a map in 21 pieces, some are annotated.

Contains maps from Survey of India, Geological Survey of India and Aeronautical Chart and Information centre USA along with two indices corresponding to the maps. Came in a Spring File belonging to Sudhir Jain.

Contains: i) Geological Sections through the Eastern Kumaon Himalayas ii) Generalised section through the himalayas iii) Panorama of the Himalayas

Papers from the 7th International Conference and Exposition on Petroleum Geophysics.

Two unlabelled tracings of the Indian subcontinent

Tectonic Map ONGC (2009) by Balakrishnan, Unnikrishnan and Murty

Contains: 1. Tectonic Map (2008) 2. Tectonic Map of India and Contiguous Areas (Paper Draft)

Contains: 1. Tectonic Map of India and its Contiguous Regions 2. Scans of maps used and made (128 slides)

1. Bay of Bengal East Coast Gravity Map 2. Draft of the "Crustal Structure of the Indian Subcontinent and Surrounding Areas" - (GSI, Memoir 123, 2009) + Accompanying images 3.IGU Abstract - "Deep Structure of the Himalayas" 4. Powerpoint presentation with picture slides

Tectonic Map ONGC (2009) by Balakrishnan, Unnikrishnan and Murty

1. Drafts and final versions of the "Structural and Tectonic Map of India and Contiguous Areas", 2009 made by T S Balakrishnan, P Unnikrishnan and A V S Murty and published by ONGC. 2. Scans of maps used and made for the same 3.Scans of assembled maps 4. Powerpoint presentation with an image of the "Tectonic Map" made by Balakrishnan dated 2013.