The Visakhapatnam design treats operation amid nuclear fallout or biological and chemical warfare as a realistic requirement. This requirement may partly reflect India's security problems with Pakistan. The reported indigenous component share rises from about 42 percent in the Delhi class and 60 percent in Kolkata to roughly 72 to 75 percent in Project 15B. Distributed power systems accompany design measures intended to improve survivability and comfort during long-range operations. The rising percentages show the increasing domestic contribution to the ships' equipment.
Notable Point · 33:53-35:15
CBRN survival and the rising indigenous share
Project 15B combines nuclear, biological, and chemical protection with a component share reported at roughly 72 to 75 percent Indian sourced.