I suppose you want to know the share of points as specified in the UGC Regulations. As per the University Grants Commission (Minimum Qualifications for Appointment of Teachers and other Academic Staff in Universities and Colleges and Measures for the Maintenance of Standards in Higher Education) (4th Amendment), Regulations, 2016 published in the Gazette of India dated July 11, 2016, the First and Principal / corresponding author /supervisor / mentor would share equally 70% of the total points and the remaining 30% would be shared equally by all other authors (p.26).
Here's the document: http://www.ugc.ac.in/pdfnews/3375714_API-4th-Amentment-Regulations-2016.pdf
Usually first author and corresponding author will get same points if the publication is a original research pulished in a indexed jol , both of them will get --15 points each and rest of the authors will get -- 7.5 points.
all my published articles i am the corresponding author too.
The answer to the first part of question is that if you have any corresponding author working on the same research project, then his/her importance is same as yours. If the name of the corresponding author has been written just to gain API score and points, then there is no importance of the corresponding author. The answer to the second part of your question is that the first author gets 70% of the points share and the corresponding author gets just 30% as per the latest UGC 4th amendment.
It is a question whose answer is not simple. The corresponding author is usually much more in charge of correspondence with the magazine. According to publications on the subject of authorship, all co-authors participate in a different degree in the research process. But one of them also handles the correspondence with the journals. As the previous answers say in many cases the first author is the corresponding author, it depends on the politics of the journal and the publisher.
The corresponding author is usually the one that has the contact with the publisher. It does not mean that he contributed more to to the published article, but it is a matter of convenience. It is not always the first author who is the corresponding author. The order of contributing authors depends often on disciplinary custom. In mathematics, for instance, the order of contributing authors is alphabetical.
I suppose you want to know the share of points as specified in the UGC Regulations. As per the University Grants Commission (Minimum Qualifications for Appointment of Teachers and other Academic Staff in Universities and Colleges and Measures for the Maintenance of Standards in Higher Education) (4th Amendment), Regulations, 2016 published in the Gazette of India dated July 11, 2016, the First and Principal / corresponding author /supervisor / mentor would share equally 70% of the total points and the remaining 30% would be shared equally by all other authors (p.26).
Here's the document: http://www.ugc.ac.in/pdfnews/3375714_API-4th-Amentment-Regulations-2016.pdf
The first author of a science paper is often a PhD student or a post-doc who would move elsewhere after getting his or her PhD done. Therefore often a senior co-author with a permanent position serves as a corresponding author and on one hand takes over the communication with the editorial office and the publisher, and on the other hand provides a contact point for anybody who wants to get in contact with the authors of the paper after it is published. It is a rather administrative role per se, but is often coupled with the role of the principal investigator who is in charge of a wider project that the said paper is part of.
As far as I am concerned, the first author will be the one who has put in much effort in the publication. Hence more weightage should be given to the first author. The next authors should be given weightage in a descending order. I have proposed a formula for that https://www.researchgate.net/profile/J_P_S_Kumaravel/publication/265844706_270/links/541d24eb0cf2218008cf0916.pdf
Check the publication guidelines wrt authorship.It clearly states the equal importance (70%) of 1st & corresponding author....rest all get 30% points each
The term Corresponding Author means the one whom the publisher will be writing to in case there is any issue. It is also understood to be the one who is the "engineer" of the work; the one who has contributed more than the others in the work. Looking at the term Corresponding from another angle it sounds like a second or consequent contributors to the article. One can be a corresponding author because he is the one more chanced than the other contributors in responding to issues in the work.
Assuming he is the lead author, I think marks should not be allotted equally to all the authors. What ever mark the paper merits, the lead author gets the full mark while the other contributors get half of what the lead author gets - all the contributors will share equally. If the sharing will be prorated downward according to where the next author.s name is written there will be a problem. The third or fourth author may even be the one who contributed most.
On the other hand an institution may decide to give the lead author half of what the paper merits and give each of the other authors half of what the lead author gets.
This is a personal opinion that should be critically looked into.
Though the sequence of authors should be determined by the relative overall contributions to the manuscript, in most cases credit equally goes to every author.