Unheralded Sameer Kathmale of Maharashtra (ELO 2325) also scored an upset win over Indian IM Karthikeyan P (ELO 2415) that helped him to move into joint second lead along with Siddharth with six points along with six others after eight rounds.
Overnight leaders - GM Mchedlishvili Mikheil (ELO 2654) and GM Pentasulaia Levan (ELO 2563) - both from Georgia, agreed for a quick draw thus maintaining their half point slender lead with 6.5 points apiece.
IM Siddharth overcame GM Tamas in a game of Slav Defence against the Queen Pawn opening. On the 8th move the former opened his 'h' file and on the 17th grabbed a pawn with his knight at 'h2', opening the file completely.
Fodor tried to trap that piece, which was smartly guarded by his Indian rival who then connected the rooks by playing his king at 'd7', which worsened the situation for Fodor.