Nifty Auto index closed up 1.84% at 29647.9 today. The index has gained 11.00% over last one month. Among the constituents, Samvardhana Motherson International Ltd added 8.71%, Exide Industries Ltd rose 3.32% and Sona BLW Precision Forgings Ltd jumped 3.29%. The Nifty Auto index has soared 25.00% over last one year compared to the 0.10% slide in benchmark Nifty 50 index. In other indices, Nifty Financial Services index has dropped 1.48% and Nifty IT index gained 1.42% on the day. In broad markets, the Nifty 50 has dropped 0.27% to close at 24570.65 while the SENSEX has dropped 0.58% to close at 78499.17 today.