Tax on LIC maturity amount

hi,
I started a policy in 2012 with a premium od 102000 per year for six years.
suk assured was Rs 600000
The Policy got matured in 2018 and ai received Rs 725000 as maturity payment.
Now do I have to pay tax on this whole amount which seems little odd to me.
or on the profit amount which comes out at Rs 1lakh accounting near 6 lakhs I paid as premium.