Intimation U/S 143(1) variance in the interest section 234B


I had paid a self assessment tax of INR 47195 for the AY 2017-2018. I have received a intimation U/S 143(1) from CPC stating that I have a computed tax of INR 48052. The spike seems to be from the interest payment at 234B that has been computed to INR 2996 to the one i had already INR 2140. That section was computed automatically when i did the e-filling. I was thinking about agreeing to the same via e-filling portal, but in that case should i be paying all the amount of INR 48052 or the difference of INR 857. If some one can advise me i will learn some thing.