1. Summary of Important Publications
1. Economy achieved in Substructures of Mega bridge Projects of East Central Railway; Under the
heading of Innovative Design Concepts in the Proceedings of National Seminar on Innovative Load
Transfer Devices and Foundation; January 2016
Economizing design is a continuing exercise and should continue during the construction period of
bridges as well. We must not sidetrack the changes in ground realities and manage them in real
time. This only can optimize design and restrict cost and time over run. In the instant case, review of
design parameters mid way resulted into conversion of 5 Km long Rail bridge into Rail cum Road
Bridge and more importantly on 20% less foundation and depth.
2. Track Maintenance- Application of theory in Practice; 6th International Conference of Railway
Experts conducted at Yugoslavia; October 1999
This explains theoretical aspects as to how to drive maximum benefit from the track laid on concrete
sleeper with higher UTS rails intended to offer high quality track with superior maintainability
requiring lesser track possession for high speed and heavy duty lines. Technical solutions available to
handle situations like over loading and over speeding are also explained rather depending only on
higher track standards.
3. Familiarization with Conventional Track Calculations for Track Dimensioning and Track Design;
Indian Railways Technical Bulletin; May 1999.
An attempt has been made to familiarize with fundamentals of conventional track calculations. This
would help the readers in appreciating the order of magnitude of stress as well as single most
primary factor providing relief to stress in (a) rail, (b) at sleeper-ballast interface and (c) formation
pressure. This article also explains the changes in behaviour of track with change in type of sleeper
or standard of maintenance so as to dimension the track and decide the track standards.
4. Issues concerning Track Inspection to Rejuvenate Track Maintenance of Modern Track;
Permanent Way Bulletin; July 1997
Systematic planning is necessary to remove the structural deficiencies in track. Rate of deterioration
cannot be controlled only by attending the ballast. Lack of knowledge of quantum of work
component wise and structure wise is the basic reason for the inappropriately planning the track
maintenance works .The result is mounting of arrears of track deficiencies. An attempt has been
made to question the present system of inspection instead of blaming the people for their so called
apathy towards track maintenance.

2. 5. A critical Resume of Manpower Planning for Track Maintenance; Permanent Way Bulletin; June
1998
An attempt has been made to de nova assess the yardstick for maintenance of a modern track laid
on concrete sleeper. The requirement and strength of manpower for maintenance of track has been
worked out.
6. Familiarization with Ultrasonic Flaw Detector; Permanent Way Bulletin; March 1999
This article explains the Principles of USFD testing technique, characteristics of Probe, Types of
probe, uses of probe and Components of the tester and prerequisites for their efficient & reliable
functioning, Calibration & sensitivity checking and necessary repairs arrangement.
7. Re-look on Decision-Making Process to Control Rail & Weld Fractures; Permanent Way Bulletin;
December 1998
Wiping out the overage track by using heavier poundage and higher UTS rails alone cannot provide
relief. In this article, attention of the field engineers is drawn as to how to systematically analyse the
situations obtaining in field by proper record-keeping and thereafter appropriate decision-making
follows for control of rail and weld fractures.
8. Maintenance Precautions on High Speed Routes; Indian Railways Technical Bulletin; August 1995
It is not possible to impose restrictive speed on high speed routes for normal maintenance. This
article identifies precautions to be taken so as to avoid Reduction in lateral and vertical resistance of
track affecting stability of track, In- built twist, Obstruction to running trains, other adverse factors
particularly on renewal sites, etc.
9. Maintenance Problems on Concrete Sleeper Track; Indian Railways Technical Bulletin; August
1995
This article deals with various problems arising out of use of concrete sleepers,
temporary/permanent solution and remedies to avoid these problems. An attempt has also been
made to make out twelve months cycle of maintenance for PRC sleepers.
10. Making Track Monitoring More Purposeful; Permanent Way Bulletin; June 1999
An attempt has been made as to how track monitoring can be used for track management.

3. 11. A case study of removing redundant empty pilot run in Metro Railway to optimize train timings
for enhanced customer satisfaction; Urban Railways; February 2014
This study discusses as to how utilization of empty pilot run on Metro Railway, Kolkata for decades
was converted into opportunity on 21.05.2014 and result obtained through this exercise can now be
extended to new Metro systems coming up. With the safety mechanisms built in any metro system
as discussed in this study can discard empty pilot run from inception itself.
12. Enhancing the capacity and developing capabilities of a cast wheel plant for possible exports;
Institute of Indian Foundrymen; May 2014
Rail Wheel Factory, Bangalore, is running to full capacity and caters to 80% requirements of Indian
Railways for wheels & axles and 100% wheel-sets .In the recent years further incremental capacity
increase has been attempted which has surfaced the bottlenecks. The bottlenecks have been solved
by ingenious methods. The working of a cast wheel plant has been analyzed from the point of view
of capacity constraints and the technical solutions. The roadmap for RWF is crafted as how the
existing plant can export its wheel to the world markets.
13. Analysis of railway wheel casting defects and identification of remedial measures; Institute of
Indian Foundrymen; July 2014
This article brings out as to how a computerized system to track the rejections introduced in
February 2014 to identify causes of rejection led to address the issues in real time to improve the
manufacturing process and thereby improve quality and reduce rejections from 6% to 4% on a
sustained basis in a very very short time. The instant case study is an effort towards scientifically
identifying the avoidable and unavoidable situation leading to rejection of Wheels and finding the
reasons for rejection attributable to avoidable rejections. This study may be relevant to other
organizations, because every organization with a continuous process with time and temperature
limitation works under conflicting requirements. In such plants numerous process parameters are to
be controlled within the limits.
14. What controls Ballast degradation & plastic deformation of subgrade, essentially ensures
Modern Track- What was the 1st stage of Birth of Modern Railway Track? Now what will lead to
2nd stage of Birth of Modern Track?; To be Published, Indian Railways, Technical Bulletin,
The 1st stage of Birth of Modern Railway Track was in 1950 when French Scientists killed two birds
with one stone ie. By evolving the need of elastic fastenings to take care of BOTH THE CAUSES OF
RAPID BALLAST DEGRADATION i.e. high frequency vibrations and hammer blows at the joints. The
article brings out the solutions for the situations when rehabilitation/ improvement of formation as
necessary, to control plastic deformation could not keep pace with the introduction of heavy duty
track because of high speed, higher axle loads and increasing GMT.

4. 15. Management of Change; To be published; Indian Railways, Technical Bulletin
This article brings out the reasoning mathematically to explain the behaviour of track. This article
also brings out how to manage the change for handling a track which has got higher track models.