Investor choice of wipro shares after demerger

Hi,

I have few hundred shares of Wipro. Investors have been given 3 options to choose after Wipro demerger. The three options are (1) 1 share of Wipro Enterprise Ltd (WEL) for every 5 shares of Wipro, (2) 7% preferential redeemable bond for every 5 shares of Wipro, (3) 1.65 shares of Wipro for every 5 shares of WEL. I want to go for option (1) but I don't know how to exercise this option and whom to inform about it. Can you please provide your valuable suggestion?

Regards,

Praveen