Can we make changes in uk visa new application form for reapplying for tourist visa after refusal of visa?
Do they compare previous application with the new application?

Additional info from comments which explain the corrective measures (edit by Gayot)
My college letter clearly says that i am enrolled in 4 years program and he has completed 3 years and 1 more year to go.I will also attach my exam results to prove the number of semesters i have cleared. The letter also says that i want to travel to uk during my vacation as the college is having holiday from 2 june to 4 july 2016 and the college has no objection. I have also attached bonafide letter from college. My Father has savings of 2900 pounds and mother has savings of 1600 pounds.
I have a joint account with my father worth 1500 pounds and we are also showing my fathers fixed deposits worth 12000 pounds. And public provident funds worth 5600 pounds in my name,fathers and mothers name combined.That should be enough?
For those having a problem with the poor resolution of the scan, it is all very standard formulae...
First dot point: she accepts that the cousin has the capacity to provide accommodation, but she needs to evaluate his (the applicant's) personal circumstances (standard text for sponsored applications)
Second dot point: she explains that he is a student with GBP 1k to spend, but she doubts his financial capacity is sufficient and notes that he did not provide sufficient evidence (standard text for student applicants).
Third dot point: she explains that the father sponsor is diving deep into his life savings to pay for the trip. (standard text for disproportionate expenditure)
Last dot point: based on all of that she thinks he will go underground and try to live in the UK (V 4.2 (a) & (c)) and moreover will become reliant on public funds (V 4.2 (e)). Text straight from the manual.
(edit by Gayot)