Repeating the same mistakes they’ve done in last 2 matches in SA. Rather than sticking to the way they took wickets in first innings (bowling continuously in the corridor of uncertainty), bowlers went on to mostly leg stump.
Also there’s no plan B or C, they took the top order for granted.
Since then they changed captain, coach and approach.
India have only changed captain (multiple times) and coach, but not the approach to survive this test..