It's that time of the year again when the salaried workforce of India is rushing to submit its savings documents for tax exemption. br Many have to put in an extra effort for tax-saving investments this year after Finance Minister Arun Jaitley increased the tax-free income from Rs 2 lakh to Rs 2.5 lakh last year and raised tax-exemption limit under Section 80C from Rs 1 lakh to Rs 1.5 lakh, among other proposals.