She was lying Tied-27th after the first round.
The other Indian in the field, Sharmila Nicollet shot 75 and needed a good second round to make the cut. Sharmila is making her first appearance on the LET this season.
Aditi, the 18-year-old Bengaluru golfer, who is in her rookie year, had two birdies, one eagle, two bogeys and one double bogey. Starting on the first, she got off to a great start with a birdie on the first, but that was neutralized on the very next hole with a bogey.
A double bogey on par-4 sixth meant she turned in two-over, but then she came back with a stunning eagle on par-5 14th, which brought her back to par again. She parred the rest of the back nine.
Aditi, whose sole Top-10 on Ladies European Tour came as an amateur in Hero Women's Indian Open in 2012, had made the cut in two of her three starts this season on LET Tour - she also played an event on Australian LPGA - and her best has been Tied-21at Lalla Meryem Cup in Morocco.
Gabsa, 21, from Stuttgart, set out on a morning of heavy rain and swirling winds and posted six birdies and one bogey. After going out in lighter rain in the afternoon, 36-year-old Wessberg from Gothenburg fired six birdies and a bogey on her way in to grab a share of the lead.
They are two strokes clear of five other players: Frenchwomen Anne-Lise Caudal and Anaelle Carnet, Germany's Olivia Cowan, Australian Stacey Keating and Nanna Koerstz Madsen from Denmark. This is Gabsa's first time leading an LET event.
Wessberg, who won three titles on the LET from 2006-2009 and represented Europe at The 2007 Solheim Cup, was equally thrilled.
Keating, a two-time LET champion, won in Spain and France in 2012.
Madsen also had an eagle on 14 along with three birdies and a bogey and she is effectively battling fellow Dane Emily Kristine Pedersen, who opened with a one-over 72, for a place in the Olympic Games this week.
