Non-filer assessee had taxable income but failed to file return...

Non-filer assessee had taxable income but failed to file return u/s 139(1), later filed return in response to notice u/s 148 without considering section 50C provisions, amounting to concealment of income. Assessee neither filed explanation nor appeared before authorities during assessment or penalty proceedings u/s 271(1)(c) despite show cause notices. No reasonable cause furnished for non-filing of return or non-appearance. Penalty u/s 271(1)(c) confirmed as assessee concealed particulars of income by not adopting section 50C provisions while computing capital gains based on registered sale deed value.