Definition: name given to the collection of explanatory pithy notes of the type of SUtras written. mainly by Kaatyaayana. The Varttikas are generally written in the style of the SUtras, but sometimes they are written in Verse also. The total number of Varttikas is well-nigh above 5000, including Varttikas in Verse.There are three kinds of Varttikas; cf.उक्तानुक्तदुरुक्तानां चिन्ता यत्र प्रवर्तते । तं ग्रन्थं वार्तिकं प्राहुर्वार्तिकज्ञा मनीषिणः । Naagesa appears to have divided Varttikas into two classes as shown by his definition 'सूत्रेऽ नुक्तदुरुक्तचिन्ताकरत्वं वार्तिकत्वम् '. If this definition be followed, many of the Vaarttikas given in the Maahibhaasya as explaining and commenting upon the Sutras will not strictly be termed as Vaarttikaas, and their total number which is given as exceeding 5000, will be reduced to about 1400 or so. There are some manuscript copies which give this reduced number, and it may be said that only these Vārttikas were written by Kātyāyana while the others were added by learned grammarians after Kātyāyana. In the Mahābhāșya there are seen more than 5000 statements of the type of Vārttikas out of which Dr. Kielhorn has marked about 4200 as Vārttikas. At some places the Mahābhāșyakāra has quoted the names of the authors of some Vārttikas or their schools, in words such as क्रोष्ट्रीयाः पठन्ति, भारद्वाजीयाः पठन्ति, सौनागाः पठन्ति. etc. Many of the Vārttikas given in the Mahābhāșya are not seen in the Kāśikāvŗtti, while some more are seen in the Kāśikā-vŗtti, which, evidently are composed by scholars who flourished after Patańjali, as they have not been noticed by the Mahābhāșyakāra. It is very difficult to show separately the statements of the Bhāșyakāra popularly named 'ișțis' from the Vārttikas of Kātyāyana and others. For details see Vol. VII Mahābhāșya, D.E. Society's edition pp. 193-224.