A javascript eclipse calculator is available at http://www.chris.obyrne.com/Eclipses/calculator.html
The metrics for the partial annular eclipse for Chennai (13° 04' N, 80° 17' E. Time Zone 5:45 E) were:
Start of eclipse: 11:40:26.8
Mid eclipse: 13:45:36.1
End of partial eclipse: 15:30:10.8
Magnitude at mid eclipse: 0.89257
Ratio of size of moon/sun: 0.917