ITR return- mandatory or not? will it cause any penalties/notice from IT

TC-7.2 lpa in which taxable salary after standard deductions is somewhere 6.9L.

Also I have no extra source of income, nether booked any profit in stocks, mf for last 1 year or more. Will it cause any issue if I don't file ITR - suppose I switch company this year then while filing ITR in next year will they cause any problems??

Please guide.