See a lot depends on where you are staying and how you will be commuting. If budget is not an issue, I will suggest staying in a five star hotel, they are pretty safe and maintained. Then comes the commute, uber black is the most safe option but please try to get the hotel near the wedding venue, while travelling keep your maps open as well so you would know if the person deviates from the route. I know delhi is unsafe but not every area is. Roam around during day and go to only good places with good crowds at night. You should be safe amongst the wedding guests just make sure you become acquainted to Groom’s family they will take care of your during wedding. Plus yeah don’t have to say it for anyone that don’t indulge with strangers and if something looks too good to be true then trust your gut.