Since my brother is a student of the School of Open Learning (University of Delhi), he was able to offer better insight on the topic. Here is what he had to say about the improvement rule mandated by the institute.

1. The only exam you are permitted to improve is the last one that you appeared for. For example, let’s say that you appeared for the B.A 2nd-year examination then it is possible to only improve it once later on. While it is not possible to implement the improvement rule on the exam, like B.A 1st-year, that you appeared in the previous year.
2. Now, it does not necessarily matter if your score either increases or decreases because whatever you score is going to be the ultimate score you receive. The marks that you retrieve will be final and you will have to surrender the previous score when you apply for the improvement exam. 

So, if you want to opt for an improvement, you need to fill the UnderTaking form. Attach your original mark sheet with the form. In case you didn’t get the original mark sheet, you can contact SOL.

Yes, a degree from DU SOL is most certainly valuable. But it is recommended to pursue some other specialized course, as an SOL degree might put you in a difficult position while seeking job opportunities.

It is suitable for those who cannot attend classes due to their time invested in some other program. If you are too in such a position then it would be like a cherry on the cake.

You would most definitely be able to secure a job with SOL degree but preparing for other competitive exams, establishing a business, or practicing a professional course would turn out as a huge advantage, giving you an edge over other aspirants.

According to some of my friends who attended DU SOL, colleges are allotted but not on a frequent basis, just for Personal Contact Program classes only. These PCP classes are held in various colleges across DU and you will get assigned a college to attend these classes.

Further, they will assist you with the study material. So it's upon you whether you want to attend classes or want to study at home by yourself.

These classes are held on Saturday and Sunday. Also, these are not compulsory to attend. You won’t be able to enjoy the life of a regular student and will be able to attend only PCP classes in the allotted college.

I have a few friends from SOL DU and here is their advice to get a better score in the examinations. 

• It is best that you follow the exam papers of the preceding 10 years to gain better insight into the pattern followed by the examination.
• Following the same, you should reschedule your time and make a good routine. 
• It is recommended that you study two subjects per day, allowing extra time when required. 
• Most essentially, it is best that you study at least six days per week and try completing one entire subject in a week or less. 
• Brush your answer framing skills, alongside making time to solve as many test papers as you possibly can.

Hope this helps answer your question.

Unfortunately no, there is no provision for transfer from SOL to a regular college at University of Delhi. It is so because SOL is an institution in itself, like any other college.

You can try to migrate into some other college but you will not be granted admission if your scores in SOL exams are not very high.

The students of SOL are often looked down upon when compared to regular colleges. Your marks will be scrutinized before you are allowed to migrate to the college. Most students are turned down because that would mean an increase in the workload.

SOL is a good option only when you are looking for just a degree but it does not carry a great value in the industry. In every sector, while competing for a job, regular students will be given the first preference and then the SOL students will be valued, although the degree will be the same. 

I have even seen some work postings referencing "SOL understudies are not qualified to apply". In the end, regular students are preferred more over SOL students irrespective of the degree.