Nathan, Daniel and Suominen, Matti and Tasa, Joni, The Intramonth Momentum Cycle (March 16, 2026, SSRN) discusses an end-of-month effect where the short-leg of a momentum strategy out-performs (summary).
The paper, however, conveniently leaves out borrow costs. Besides, in India, only stocks with futures listed can be shorted. When you include these constraints and add up transaction costs, the results are underwhelming.


Code and charts on github.