Ollie Pope and Joe Root, the two batsmen who did not want to take risks towards the end of the session, batted very cautiously in the last few overs. Moreover, if these two batsmen can bat for a long time, then England will definitely reach the run lead. Looking at England's batting style in the first innings, it can certainly be assumed that England will not suffer a batting disaster. Therefore, if England can form a proper partnership, they will be able to collect over 500 runs in the first innings, whereas if they have a lead of around 150 runs, they will be able to collect the runs that India will set in the next innings very easily.
That is great point about England situation. It looks like Ollie Pope and Joe Root were playing carefully at end to avoid losing wickets. If they can keep batting for long time England should not only get ahead in runs but also build big lead. Since England batted well in their first turn it is unlikely they will suddenly do badly. If Pope and Root can build strong and lasting partnership scoring over 500 runs seems very possible. Getting lead of about 150 runs would put them in very strong spot making it easy to chase whatever India scores next. Everything depends on those two forming strong partnership.