An outside edge off Singh gives Root his third boundary and brings up the 50-run partnership for the seventh wicket. However, three balls later Root hits a classic square cut for his fourth boundary.
The batsman continues in Jadeja's next over, a late cut ensuring him another boundary and taking the English lead to 80.
Varun Aaron is back into the attack, replacing Singh (17-2-79-0) in the 69th over.
Rain is pretty severe now and umpires have called for covers. England 237 for six (71 overs), a lead of 85. Root is unbeaten on 48 and Buttler on 22, the two having added 67 runs for the seventh wicket thus far.
We are back for the second session. Pankaj Singh to start the proceedings from the Pavilion End. Joe Root to face. A single off the fourth ball takes the English lead to 50.
Ravindra Jadeja to bowl the second over, from the Brian Statham End. He gives away eight runs. Buttler drives Singh through cover for his second boundary in the next over.
Bhuvneshwar Kumar returns to the attack in the 55th over, replacing Aaron (14-2-44-3). Root hits a fabulous boundary off the last ball, past the point fielder.
Ravindra Jadeja is introduced into the attack in the 58th over, replacing Ashwin (11-1-22-0). He gives away just two runs first up. Ashwin replaces Kumar (18-6-47-3) at the other end.
A boundary by Buttler, in Ashwin's second over, helps England get to the 200-run mark, in the 61st over.
England reach 201 for six (62 overs) at lunch, an overall lead of 49. Root is batting on 23 and Buttler on 13, the two having added 31 runs for the seventh wicket.
India have finally won a session, after losing 16 on the trot, with England adding 88 runs losing three wickets in the process.
The two boundaries off Kumar, both off short balls, would have done Moeen's confidence a lot good. He has struggled with the short ball so far in this series.
R Ashwin replaces Kumar (16-6-40-3) in the attack in the 50th over, the first time spin is introduced in the day. It's a maiden first up from him.
It's Aaron who provides India the third wicket, crashing through the defense of Moeen Ali (13). It is also Aaron's third wicket. He has bowled really well, but has also given away a lot of extra runs.
Jos Buttler is the new man in. He and Root have a lot of work to do if England are to build on a healthy lead.
Root guides Aaron to the third man for his first boundary, his first scoring shot after facing nine balls.
Three runs by Root, off Kumar, help England get past the 150-run mark, in the 48th over, and level with the Indian total as well.
A boundary by Moeen off the next ball helps England take the lead.
The first bowling change for India, in the day's eighth over. Varun Aaron replacing Singh (14-2-64-0). Bell takes three off the first ball.
It is Kumar again who ensures India the second breakthrough of the day, having Bell (58) caught behind.
Bell's 82-ball knock was inclusive of eight hits to the fence and one over it. Moeen Ali is the new man in.
An inside edge off Singh gives Jordan his second boundary. He gets his third off the last ball of the over, towards third man this time.
After half an hour of frustration India finally make the breakthrough in the seventh over of the day, Kumar having Jordan (13) caught by Varun Aaron at midwicket.
Joe Root is the new man in. England still trail by 16 runs.
Ian Bell and Chris Jordan walk out to bat. Bhuvneshwar Kumar to start the proceedings for India. Bell hits the final delivery to the fence for the only runs from the over.
Pankaj Singh to bowl the second over of the day. The fourth ball is short and Jordan pulls it to the square leg fence. A single off the last ball gives Bell his 42nd Test fifty.
What an innings it has been, with eight boundaries and a six.
Hello and welcome to the live coverage of the second day's play of the fourth Test between England and India at Old Trafford, Manchester.
The home team will look to consolidate its advantage and take a healthy lead. Mid you, they bat last on this already deteriorating wicket.
Ian Bell (45 not out) is looking in good touch.
The visitors, on the other hand, will try to get the nightwatchman (Chris Jordan) out early and take a couple of more wickets at least in the opening session.
Varun Aaron (2-26) has looked impressive so far.