The shot which brought up his half century was a lucky shot when his upper cut slipped from Nathan Rimmington's hands to go for a six.
However, Rimmington made amends as he came on to bowl in the next over, removing both Irfan Pathan (14) and Sehwag to reduce Delhi from a relatively comfortable 94 for four to 96 for six.
Agarkar, who bowled beautifully, then came to the party and hit a couple of boundaries under pressure and his 11 not out proved to be priceless in the end.
Needing 8 off the final over, Agarkar hit a cover drive off Rimmington and then took a single as Negi took the strike. Needing three from four balls, young Negi blasted Rimmington through the mid-wicket for a four much to the delight of his dug-out.
In Image: Sehwag celebrates his half-century