491: Charakasamhita is a work on:

(a) Polity

(b) Medicine

(c) Architecture

(d) Mathematics
492: Out of the following the oldest dynasty is:

(a) Mauryas

(b) Nandas

(c) Pallavas

(d) Guptas
493: To which Lodi Sultan does the given map relate and what town does the site marked A on the map represent ?

(a) Behlol Lodi, Jaunpur

(b) Sikandar Lodi, Aligarh

(c) Ibrahim Lodi, Jaunpur

(d) Ibrahim Lodi, Aligarh
494: Sepoy mutiny of 1857 failed due to the:

(a) Lack of effective organisation

(b) Lack of unity of purpose

(c) Lack of unified system of leadership

(d) All of the above
495: Which of the following is/are the possible consequence/s of heavy sand mining in riverbeds ?

1. Decreased salinity in the river
2. Pollution of groundwater
3. Lowering of the water-table
Select the correct answer using the code given below :
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1 ,2 and 3