Vishwa's practice involves administrative litigation before state public utility commissions, primarily before the Virginia State Corporation Commission. She has served as lead counsel in proceedings for electric and gas clients involving securing transmission-line certificates of public convenience and necessity, demand-side management program and cost recovery, integrated resource plans, affiliates act and securities act approvals. She has also been actively involved in generation-plant certificates of public convenience and necessity proceedings, and base-rate and rider cost recovery proceedings under the Virginia Regulation Act. While serving as in-house counsel, Vishwa was responsible for counseling her utility client on federal and state codes and standards of conduct, including creating and delivering training programs, and designing and implementing controls and procedures for compliance.

Vishwa has practiced before the State Corporation Commission of Virginia, North Carolina Utilities Commission, and New Jersey Board of Public Utilities.

From 1995 to 1997, Vishwa served as a law clerk for the Chief Staff Attorney’s Office, Virginia Supreme Court, Richmond, Virginia, 1993-1995, and from 1995-1997, as assistant general counsel for the Office of General Counsel, Virginia State Corporation Commission, Richmond, Virginia.