India, Oct. 12 -- Former champions Uttar Pradesh piled up 540 in the first innings on Day Two of their Elite Group A encounter against hosts Bihar at the Rajgir International Stadium on Monday.

Resuming at their overnight 287/3, they added 253. Bihar reached 44/2 at stumps, still 496 runs behind.

UP opener Madhav Kaushik and birthday boy Rinku Singh had put the team in control with centuries on the opening day. The pair extended their unbroken fourth-wicket stand to 207 runs before Rinku was caught behind off Amod Yadav for 112 (168b, 8x4, 3x6).

Rinku had struck his third consecutive Ranji Trophy century overnight, after last season's 176 against Tamil Nadu and 165* against Andhra Pradesh.

Kaushik remained the anchor, compiling 150 fr...