A public opinion survey conducted by the Herald magazine suggests that the upcoming polls may be too close to call.

Here are 5 key takeaways from the findings:

1. PTI enjoys a slim lead over the PML-N at a national level

2. In Punjab, the PML-N has a lead of 7 percentage points over the PTI

3. Backing for PML-N falls dramatically outside Punjab to just 10pc in KP, 11pc in Balochistan and 4pc in Sindh

4. 42pc of respondents in KP support PTI

5. 54pc of respondents in Sindh support PPP

However, 13pc of respondents remain undecided. The election result may depend on which way these undecided voters swing, and what party can motivate its supporters to cast their ballots on July 25.

These findings appear consistent with polls conducted by Gallup and Pulse Consultants during May 2018 which also show that undecided voters may influence the balance in Punjab.

The full findings of the survey can be perused here.