Hey Anurag,
You can go to following places for trekking :
1)Kheerganga trek(One day trek, Parvati valley-Tosh, Malana, Kasol)
2)Triund trek (One day trek, Dharamshala-Naddi, Dalhousie, Macleodganj)
3)Prashar lake trek (One day trek, Mandi)
4)Kedarkantha trek (5 days trek, Uttrakhand-Dehradun, Rishikesh, Mussourie)
Happy trekking!!!!!
Hello Ayushi
As you have mentioned that you're a beginner and want to trek in the month of February and most important southern india
then i would suggest you Brahmagiri Ranges and Pushpagiri are famous for trekking in Karnataka.
Happy Trekking ❤️