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Background: Calcaneal spur is a cartilaginous outgrowth at the joint margins of calcaneum, which later gets ossified. A calcaneal spur is one of the most typical causes of heel pain. Pain may aggravate on physical activities. In Ayurveda, the calcaneal spur can be correlated to vatakantaka, where vata gets accumulated in the joints of the feet producing pain. This condition can be effectively treated by agnikarma procedure. Bindu dagdha is one type of agnikarma based on akruti where therapeutic heat is applied in dot or pointed form. A 47-year-old female patient suffering from calcaneal spur in the right heel was treated with three sittings of bindu dagdha type of agnikarma. In the first sitting, she had partial relief of the symptoms like reduction in difficulty in walking, tenderness and swelling. At the end of the third sitting, she could walk without difficulty. Result & conclusion: In para-surgical procedures, agnikarma is considered superior as the disease does not re-occur. Agnikarma removes the srotovarodha and pacifies the vitiated doshas causing a reduction in pain. In the present case study, the bindu dagdha type of agnikarma has therapeutically given promising results in the pain management of calcaneal spur.

Multi-level inverter technology has emerged recently as a very important alternative in the area of medium-voltage high-power energy control such as ID and FD fans which runs with the help of these megawatt power drives and renewable energy integration to grid such as solar energy integration which requires pure sinusoidal voltage with less than five percent THD to synchronize to grid. For the requirement of large voltage sources(DC) in number, reduced electromagnetic interference, utilization of power electronic devices having less voltage blocking capability, less percentage of total harmonic distortion in output voltage, reduced stress on insulation they are mostly used. Various topologies are used for multilevel inverters. Among them the most commonly used is cascaded H-bridge (multi-cell). A 3-phase 11-level reduced H-bridge topology is proposed and is controlled by level shift carrier PWM in this paper. The considered topology and controlled algorithm is implemented in MATLAB/SIMULINK. The simulation results show a reduction of THD to a greater extent which will be useful in renewable areas and mega watt power drives.