Jyoti has been in forefront of switchgear technology as manufacturer of medium and high voltage switchgear in india for over 40 years. In 1957, jyoti pioneered manufacure of 3.3 - 36 kv mocbs in technical collaboration with calor emag, germany. In 1967, 145 kv mocbs were introduced first time in india in technical collaboration with oerlikon engg. Co., switzerland. In 1973, first indigenous 33 kv, 750 mva outdoor mocb was type-tested at high power laboratory, czehoslovakia. The indoor mocb [12 kv, 40 ka / 7.2 kv, 44 ka] was developed and tested at kema, the netherlands and central power research institute, bhopal. Jyoti has received import substitution awards from government of india thrice for development of mocb range of products.