Chennai to Guangzhou via singapore on 19th March 2024 and (CAN) Guangzhou to Bali denpasar

Assuming that you are a citizen of UK, you are perfectly fine with your flight itinerary and also with your flight tickets. It is allowed to travel on separate tickets and on unrelated airlines. You should just take care that the immediate points before and after Guangzhou have to be in two different countries or eligible territories. In other words, your first immediate point before Guangzhou will be Singapore, so your second immediate point cannot be Singapore again!

During your stay in Guangzhou, you can stay in the hotel, but you can also stay at your friend as well. In the case of your stay with your friend, you will have to register within 24 hours after your landing within the closest PSB (Public Security Bureau) and your friend will assist you. Also, you will be asked, upon your landing in Guangzhou, where you will stay, so you will have to give to the authorities the name of your friend, his address and a phone number. Nothing to worry about, this is perfectly usual procedure.