Lic Of India — Extent in date of policy maturity

Sir,
I have two policies- no[protected] and[protected] in plan term 165/20. I had told to my agent that the duration of my Policy should be ten years, but he has made it for 20 years. On being asked why he had done this he replied that it will matter at all and I can claim full benefit after 10 years.
kindly let me know the truth. I would be highly obliged if you could kindly let me know the maturity amount after 10 years. Hoping to here from at the earliest.

Thanking You.
P K Chakraborty
Mail Id pulak.[protected]@yahoo.com
Mobile-[protected]