Shares of companies such as BEL (Bharat Electronics Limited) (NSE: BEL), Lupin (NSE: LUPIN), RVNL (NSE: RVNL), Timex Group India, and Cupid (NSE: CUPID), among others, will be in the spotlight today, December 30. As soon as the stock market opens for business, investors and traders will be looking forward to buying and selling stocks during the trading session on Tuesday.