JPMorgan Indian Investment Trust joins in the party after the Indian stock exchange had to be closed down after shares surged following Congress's resounding victory in the country's elections.Big Yellow Group is posting big gains after it announced a placing of 11.6m shares to raise funds for medium term growth alongside a £71.5m full year loss.Turning to the fallers, advertising firm Aegis is lower after revenue increased during the first quarter, but fell when acquisitions and a "significant" exchange rate benefit are excluded.Scottish dairy group Robert Wiseman is lower after it reported an 8.6% drop in annual adjusted operating profit after significant cost increases in the first half of the year.FTSE 250 - RisersBig Yellow Group (BYG) 305.50p +13.15%JPMorgan Indian Inv Trust (JII) 322.00p +12.59%SVG Capital (SVI) 131.75p +6.25%Renishaw (RSW) 434.50p +4.76%DS Smith (SMDS) 77.50p +4.73%GKN (GKN) 116.75p +4.24%Restaurant Group (RTN) 156.75p +3.98%International Personal Finance (IPF) 79.75p +3.57%Mitchells & Butlers (MAB) 269.75p +3.55%Halfords Group (HFD) 316.25p +3.35%FTSE 250 - FallersAegis Group (AGS) 82.00p -5.75%Dunedin Income Growth Inv Trust (DIG) 147.00p -5.62%Fisher (James) & Sons (FSJ) 408.00p -5.34%Domino Printing (DNO) 208.75p -5.11%Brit Insurance Holding (BRE) 199.25p -4.55%Robert Wiseman (RWD) 343.25p -3.31%Stobart Group (STOB) 104.50p -3.24%Henderson Group (HGG) 77.50p -3.13%Greene King (GNK) 421.75p -3.05%TR Property Inv Trust Sigma Shares (TRYS) 49.25p -2.96%