last nite during night ul i ran tracert from my cmd for google website

it was 777 ms and now i ran the same thing and its was 77 ms

why my latency rises up during night ul period ?

yes i ve been getting very low speeds and i complained twice to bsnl,

any 500 plan users from Bangalore who r getting low speeds during 2am to 8am

i am getting around 300 kbps during 2am to 8 am and 2mb speed during daytime