Hi Team,

I would like to add the Bombay Stock Exchange (BSE) to the financial holidays list.

Implementation Strategy

Since the BSE (Bombay Stock Exchange) and NSE (National Stock Exchange of India) share the exact same holiday calendar (regulated by SEBI), I have implemented this by inheriting from the existing NationalStockExchangeOfIndia class.

This approach ensures:

1. Zero Code Duplication: We reuse the complex Hindu/Islamic holiday logic already written for NSE.
2. Maintainability: Any future fixes to the Indian market holiday logic will automatically apply to both exchanges.

Code Example:

from holidays.financial.national_stock_exchange_of_india import (
    NationalStockExchangeOfIndia,
)

class BombayStockExchange(NationalStockExchangeOfIndia):
    market = "XBOM"