Bangladesh are currently placed at 253 for eight, needing 33 more runs to register their maiden Test victory against England. Their fortunes on day five will depend heavily on their flamboyant batsman Sabbir Rahman, who is on an unbeaten 59 and has scored three boundaries and two sixes in the innings.
Taijul Islam also provided good support to Rahman as the pair added unbeaten 15-run stand for the ninth wicket before the umpires called off the play due to bad light.
Broad, who provided England with two vital breakthroughs at the end of day four revealed that the plan for the visitors will be to prevent the boundaries and force the batsmen into making mistakes.
"The key is to stop boundaries," Broad told Sky Sports. "The boundaries take your runs away so quickly. If we can make them operate in ones this pitch is still doing enough for us to take wickets.
"Our mentality will be to be as disciplined as we can and not give any free boundaries away. I think we will look to keep it dry and try and have a quiet first hour, make their batsmen make mistakes and try and take our catches.
"We had a chat at tea and as seamers we felt that we could limit the boundary options so we can still use spin at one end because when we used double spin, the batsmen got used to that and got used to hitting a boundary area.
The 24-year-old, who is set to play his 100th Test in the second game of the series credited Bangladesh for the discipline and the skills they exhibited with the bat in the second innings.
"It's been tense. It is Test match cricket and it never ceases to amaze me.
"It's been an exciting Test match throughout and tomorrow is going to be a nerve-wracking day but it is a fine balance, trying to take wickets but not concede easy runs.
"Bangladesh have played really well today, I think they batted fantastically well to get up to the score they have."
Meanwhile, Bangladesh head coach Chandika Hathurusinghe also expressed his satisfaction with the performance of his team and he gave special credit to the bowlers for picking 20 wickets.
© Cricket World 2016