Jalaj Saxena's a largely average bowler, but yes, his bowling goes up several notches when he's playing for any team other than Madhya Pradesh, for whom, he's still king with the bat. He and Nayar would make a team's top six, but don't cut it as strike bowlers. Exceptionally good with the bat, though, and should secure a regular place in an IPL XI. Can be an asset on a seamer-friendly pitch. However, a strike spinner who can bat would be a better choice, and he isn't one.
Ladda's nothing special. He's not even seasoned, and has played very little. I can't say much about Pankaj Singh, who also does better for teams other than his state team, Rajasthan, but he doesn't need to prove himself in events like these- he should be playing in place of Ishant, Dinda, Munaf and Shami. There's no case at all to leave him out all the time.
Ian Chappell strongly exhorts the Indian selectors to play Unmukt Chand in the national side. Let him finish five seasons, five A-team tours outside Asia and maybe then he can play for India. The India cap should be earned on merit, not some U-19 quota.