Bhuvneshwar Kumar celebrates a wicket. Pic/ AFP

Mohammad Shami and Jasprit Bumrah made full use of seaming conditions to put India on the cusp of a famous Test win in South Africa at lunch on day four of the series opener here. Shami and Bumrah shared three wickets each in the morning session on day four, effecting a South African collapse in which they lost 8 wickets for only 65 to be bowled out for 130 in the second innings.