In the year 1962, he travelled to Germany and received scholarship from Indo-Germany exchange to deliver his services and explore technological skills in Stuttgart and Munich.
After this, September 1964, he delivered his skills as Senior Scientist and Officer in CEERI (Central Electronics Engineering Research Institute) of Pilani in Rajasthan.
During the entire career of Kosta in ISRO, he got the opportunity for working as team with large numbers of countrywide and international scientists, including the scientist-cum-former president Dr. A. P. J. Abdul Kalam.
Kosta, along with his partners, presented an engineered novel about tuneable, metamaterial and dual-band type of antenna working primarily on the array of split ring resonator or SRR.
He and its other partners opined that the antenna suits perfectly for countless ultra wideband applications, while the operation achieved via deflected ground plane combined with CNC split resonator.
[10][11] This research paper created by Kosta and his colleagues Dwivedi and Upadhyaya concerns primarily about the best utilization of split ring resonators within multiple materials negative permeability.
Human blood contains large numbers of negative and positive charge carriers as atomic ions or molecules to serve as electrically conducting mediums.
[12] Kosta and his colleagues have used therapeutic methodology to make physical models network containing alignment of three different memristors in parallel and in series combination to study the function of its components.
The citation highlights the characteristics of liquid (human blood) memristor or its proper combination to fulfil specific or potential applications in the sector of biomedical electronics, artificial brain, man and machine interface and envisaged signal processing and lots more.