Please note that only those journals listed in the Journal Citation Reports of Clarivate Analytics will have Journal Impact Factors (JIF). Many journals in India do not come under the impact factor scheme of Clarivate Analyitcs. The National Academy of Agricultural Sciences (NAAS) has recognised this fact and came up with a scheme for agriculture and related disciplines. According to the scheme, each journal is assessed, and its relative merit and standing among researchers is indicated by giving points out of a maximum of 20.

Before assigning points, NAAS first ascertain whether the journal is already having an ‘Impact Factor’ of Clarivate Analytics. For those journals where JIF is available, the scores are assigned as 6.00 + Impact Factor up to 20.00 (category I), and for those journals where JIF is not available, the rating is from 1 to 6.00 only (category II). The academy periodically revises its rating. The rating is available from http://www.naasindia.org/rating.html.

In short, those journals having NAAS rating upot 6.00 will not have any impact factors!

Please note that only those journals listed in the Journal Citation Reports of Clarivate Analytics will have Journal Impact Factors (JIF). Many journals in India do not come under the impact factor scheme of Clarivate Analyitcs. The National Academy of Agricultural Sciences (NAAS) has recognised this fact and came up with a scheme for agriculture and related disciplines. According to the scheme, each journal is assessed, and its relative merit and standing among researchers is indicated by giving points out of a maximum of 20.

Before assigning points, NAAS first ascertain whether the journal is already having an ‘Impact Factor’ of Clarivate Analytics. For those journals where JIF is available, the scores are assigned as 6.00 + Impact Factor up to 20.00 (category I), and for those journals where JIF is not available, the rating is from 1 to 6.00 only (category II). The academy periodically revises its rating. The rating is available from http://www.naasindia.org/rating.html.

In short, those journals having NAAS rating upot 6.00 will not have any impact factors!

NAAS rating of journals is given by the Indian national institute where as the Impact factor is given international body based on the number of citations of the Journal articles. Hence it is very important to consider the impact factor journals rather than NAAS rating.

Impact factor starts from NAAS rating 7.

Impact factor+6= NAAS rating

Every year in the month of January NAAS rating of journals are updated

NAAS rating is given by ICAR but impact factor is given by international agencies.

NAAS Score of Category One Journals = 6 + Impact Factor (Upper limit is fixed as 20)

NAAS Score of Category Two Journals = Own evaluation of the board

most of agriculturist consider that for agriculture related work only NAAS rating is considered, i sit true.

Thank you for such clarification

Can some help to differentiate the importance of various indexing channel

e.g DOAJ, Google scholar. which one is the best, how does it help authors?

Calculation of Journal Impact factor (JIF) =

number of citations in 2007 to articles published in 2005 and 2006 in Journal X

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number of articles published in 2005 and 2006 in Journal X

This formula may be use for calculation with NAAS rated Journals

Yes

Usually, NAAS Score of Category One Journals = 6 + Impact Factor (Upper limit is fixed as 20).

In my opinion, irrespective of any rating just follow the Impact factor

secondly, or how much is the circulation of your articles also matter

still it is not clear

To my little knowledge, 6 + impact factor = NAAS rating of the respective journal.

In order to calculate NAAS rating from impact factor we have to add 6 to the impact factor i.e 6+impact factor= NAAS rating

Impact factor is the average citation an article in a journal received per year or the past n years (Maximum n is taken as 5)

NAAS (National Academy of Agricultural Sciences) score is based on this impact factor in addition to their own evaluation. NASS classified all journals into two categories. First category consists of journals which received impact factor from Thompson Reuters. Rest of the journals are assigned to category two. NAAS score of category one journals is estimated as 6 + Impact factor with an upper limit of 20. NAAS score of second category is assigned by the evaluation of the NASS board. It is highly impossible to evaluate the scientific content of all journals and assign a own score.

NAAS score is indirectly based on Impact factor and own evaluation. Therefore, Impact factor is more important than NAAS score.