As you want here I am telling process to get info about Oil and Natural Gas Corporation Limited (ONGC) tenders :

Go to the Oil and Natural Gas Corporation Limited (ONGC) tender official website

Click on latest tender option given in the mid side

By click there you will land on latest tender page .

as on 17.4.2017 following tenders notification avail there
Tender Number Tender Description
UP17C17002[NIT] Online repair & strengthening of cooling water supply & return lines in LPG-I/...
LC1MC17019[NIT] Repairing of existing CISF shed and allied works at Installation ...
LC1MC17018[NIT] Repairing, carpeting of approach road and other allied works at Installation S...
EC12L17006[NIT] Construction of Boundary wall at NN # 16 at Mehsana Asset.
VC1CC17015(e -Tender)[NIT] CONSTRUCTION OF TOILET, FIRE WATER PUMP SHED AND OTHER MISC. CIVIL WORKS AT KU...
106YC17002[NIT] Leasing of Spce for Advertisement at Transit Accomodation, Santacruz, ONGC Mum...
ZC1PC17001[NIT] Provision of parking sheds for vehicles at Fire Station, ONGC, Dehradun.
EC12L17001[NIT] Construction of Boundary wall at NN # 16 at Mehsana Asset.
LY1BC17006[E-Gas] Sale of Gas from Hazarigaon Field
LY1BC17005[E-Gas] Sale of Gas from Dayalpur & Suphyam Fields