I bought an 1100 call option on RIL, but it is not reflecting in my demat account. How can I sell these options now?

Options is a contract and contracts are not held in your demat account. Your demat account only holds assets that you own. You don’t own an options contract. You just have a right. Your demat account is only for equities, ETFs etc. Call options are contracts and they will be held in your F&O trading account not in your demat account. Call options do not give you ownership. The call option is a right to buy an asset like RIL, SBI etc, but it is not equivalent to shares of SBI or RIL. When you buy these shares, you will surely hold them in your demat account but not the call option. Yes a call option is a right to buy an asset but in India all options are cash settled. There is actually no delivery against call options. The profit if any will be credited to your F&O trading account. Of course, losses will be debited.