Is it safe to buy property without updated mutation records?

I am planning to purchase a small residential property (around 3.7 cents of converted land) in Kundapura, Karnataka. The property has a house, and the seller claims that all documents are clear. However, the seller says that the conversion is in his name and he has a registered sale deed, but the RTC (Pahani) still shows the previous owner. He says this is normal and takes time, and has suggested that I check with lawyers or banks. I need clarity on the following: • Is it safe to buy the property when the RTC is not updated in the seller’s name? • How important are mutation and RTC updates before purchase? • Will banks approve loans in such cases? • What risks are involved if I proceed with the purchase? • Should I insist on mutation completion before registration? I want to avoid any future legal or financial issues.