Here are some overtaking schedules of some trains. Tried to exclude premier trains. Please check whether any of these being wrong. Railfans are welcome to watch and take videos of these actions:
12307 HWH- JU Exp by 12987 SDAH- AII Exp between JGR and BBL
18645 East Coast Exp by 22849 SHM- SC Exp/22825 SHM- MAS Exp at ROP
13425 MLD- ST Exp by...
more... 12130 Azad Hind Exp between KJL and BIS
12850 PUNE- BSP Exp by 12101 Jnaneswari Exp between NPI and DGS
12151 Samarsata Exp/12949 Kaviguru Exp by 12129 Azad Hind Exp between MZR and MANA
18029 LTT- SHM Exp by 12879 LTT- BBS at DGG
12833 ADI- HWH Exp by 12859 Gitanjali Exp at KHS
13150 Kanchankanya Exp by 12378 Padatik Exp between SM and SRPU
15629 MS- GHY Exp by MS- DBRG Exp by 12363 KOAA- HDB Exp between HWR and KNE