Lamb, who completed his defiant half-century in style by straight driving Ragheb Aga for his seventh boundary, steered his side to their second batting point by adding 36 in 15 overs for the ninth wicket with David Balcombe.
Siddique pressed ahead and kept his side in contention bydriving Zaheer for two fours and, after being dropped by Ishant Sharma at mid-on, hoisting Yusuf over long-on for six.