Early morning pass of Space Station with good signals!

Early morning pass of International Space Station in this region starting at 5.44 am IST was a Western pass and I was looking for the AMSAT-India demo station from HamFest India venue. Though I could not hear VU2EXP from there, I could hear VU2TEK from Thiruvananthapuram very well and had a quick contact with him. Towards the end of the pass I could hear him calling another VU2 station, but the audio was not very clear to me being, beyond the range of my limited setup with fixed elevation/azimuth Moxon Yagi! Later VU2TEK was kind enough to email me the audio clip, and it was VU2MZT that I missed. Not sure whether VU2MZT was using a different setup from his usual setup. Otherwise we should have heard him much better on the ARISS.