Recently I have gone through a big trouble due to compulsory physical delivery settlement adopted by SEBI circular No.: SEBI/HO/MRD/DP/CIR/P/2018/67, starting from July 2018 expiry.
I bought 3000 Dec 24 Expiry Call Options for Adani Enterprise with Strike Price of 2400
Till the day of expiry, it remains out of the money(OTM), means, below the strike price of 2400 and was about to expire 
in the last 5 minutes of expiry trading session, the stock price closes at 2400.25 just 25 paisa above the strike price and it came in the money(ITM).
Through I requested Reliance Money, my broker, not to exercise my options but because of SEBI circular, they shown their helplessness and said that they have no choice but will have to exercise the options. And I will have to take delivery of 3000 shares, which means I need to arrange 72 lakh Rupees immediately over night
but the options for which being the option buyer, I was thinking my liability is only the premium I paid to buy those 3000 call options, which was nearly 40 thousand Rupees,  suddenly in last 5 minutes became the liability of 72 lakh Rupees, for which I was neither mentally nor financially ready, and I started getting warnings from Reliance Money, that If I cannot arrange 72 lakh Rupees, my all others positions in my portfolio will be squared off by Risk Management and still I will have to pay penalty for short margin and interest for using the margin from Reliance Money for one day

So, I had to take the delivery of those 3000 shares for Rs 72 Lakh, which also come with delivery brokerage taxes and trading risk on next business day, or till the delivery of the shares is done, which is supposed to be done at the end of next business day, which completely defeated the purpose and objective of the buying option
Till the delivery happened and I squared off my shares, our whole family remain under the extreme stress.

This kind of things never happened when options were cash settled, we as option buyer never need to worry about arranging huge margin, if the option at any point of time comes in the money(ITM).
It also save broker from doing any risk management for the option buyers near the expiry or any time during life of options.
I, buyer of the options, request the SEBI to please move back options to cash settled.