1 and 3 are correct while 2 is incorrect.
When a bill is sent to the governor after it is passed by state legislature, he can:
(a) Give his assent to the bill, or
(b) Withhold his assent to the bill, or
(c) Return the bill (if it is not a money bill) for reconsideration of the state legislature. However, if the bill is passed again by the state legislature with or without amendments, the governor has to give his assent to the bill, or
(d) Reserve the bill for the consideration of the president.

All of the above are correct.
One of the most important Neolithic agricultural settlements in the Indian subcontinent is Mehrgarh. It is located on the Bolan River, a tributary of the Indus, at the eastern edge of the Balochistan plateau.
Other important Neolithic sites include Gufkral and Burzahom in Kashmir; Mahgara, Chopani Mando, and Koldihwa in Belan valley in Uttar Pradesh; Chirand in Bihar etc.
In South India, the important Neolithic sites include Kodekal, Utnur, Nagatjunikonda, Palavoy in Andhra Pradesh; Tekkalkolta, Maski, Narsipur, Sangankallu, Hallur, and Brahmagiri in Karnataka; Pariamlpalli in Tamil Nadu etc.

1 and 2 are correct.
These were Indian Opinion (in South Africa during 1903-1915), Young India (1919- 1931), and Harijan (1933-1942 and 1946-January 1948).

All of the above are correct.
The Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation (BIMSTEC) is a regional organization of seven member states in South Asia and Southeast Asia lying in littoral and adjacent areas of Bay of Bengal constituting a contiguous regional unity.
It comprises seven member countries: five deriving from South Asia — including Bangladesh, Bhutan, India, Nepal, Sri Lanka — and two from Southeast Asia, including Myanmar and Thailand.

The proposed Lemru Elephant Reserve is located in Chhattisgarh.