Keeping up Delchev continues

White played ambitiously and was rewarded in the endgame

Gupta-Puranik

Grunfeld 5.h4

40th TCh-IND 2020 Rd5.1

After 27..Rab8(Diagram)

The passed d-pawn keeps Black tied up while the ugly kingside pawns are not helping much

What do you recommend for White?

After 27..Rab8